Consumer Electronics

1. Support anti-shake, can be applied to cell phones, smart toys, PC multimedia, digital cameras, law enforcement, sports cameras, smart home, intelligent identification, car recorders, etc.2. OV5645 light-sensitive chip, high image quality, low noise, high sensitivity, low crosstalk, low power consumption3. Autofocus, with motor, support autofocus control AF VCM driver4. 5 megapixels, 2592x1944 resolution, support 1080P@30fps, support 720P 60 fps high-speed shooting5. Pixels: 5.0 megapixels (2592x1944)6. Light-sensitive chip: OV5645 (1/4 inch) CMOS7. Format: RGB/YUV8. Frame rate: QSXGA (2592x1944): 15 fps; 1080p: 30 fps; 1280x960: 45 fps; 720p: 60 fps9. Interface: MIPI10. Field of view/focal length: 67.4 degrees/3.37mm11. Size: about 21 x 8.5 x 5mmSpecification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 10cm * 7cm * 2cm / 3.94inch * 2.76inch * 0.79inch Qty per Carton 500 Carton Weight 17.00kgs / 37.48lb Carton Size 30cm * 50cm * 56.7cm / 11.81inch * 19.69inch * 22.32inch Loading Container 20GP: 313 cartons * 500 pcs = 156500 pcs 40HQ: 727 cartons * 500 pcs = 363500 pcs

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1. Basic function: realize the bi-directional transparent transmission function of serial port and Ethernet interface2. Ethernet: common network port3. Isolation protection: without isolation4. Serial port: TTL5. Power supply: DC 3.3V/5V6. Power supply method: row of pins / pads7. Application scenario: can be used as serial server, Modbus gateway, MQTT gateway, suitable for data acquisition, IoT gateway, security IoT and smart meter monitoring, etc.8. Size: about 34 x 23 x 11.5mmSerial port parameters:1. Baud rate: 300-115200bps2. Data bits: 5-9 bits3. Flow control: with flow controlSoftware:1. Protocol: ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS2. Configuration mode: host computer configuration, WEB browser, device management function library3. Communication mode: TCP/IP direct communication, virtual serial port mode4. Data transmission mode: TCP Server, TCP Client, UDP Group, UDP5. Modbus gateway: Modbus TCP to RTU6. Other functions: custom heartbeat packets/registration packets, custom web pages, etc.Features:1. Compact size, easy integration, low power consumption2. Can be quickly embedded into industrial, IoT and security and other areas of product applications3. Designed with postage stamp hole sinker process, highly integrated package, supports multiple ways to embed into various product applications4. Support a variety of communication modes, support TCP server / TCP client / UDP multicast / UDP mode5. Support Modbus gateway, suitable for Modbus network upgrade, can cooperate with 3D force control modal components6. Customized heartbeat packet and registration packet, convenient for communication and device identification with the cloud7. Support NTP protocol, get network time for serial output or for protocol content upload8. Support web page and upper computer configuration9. Pin out control pins, easy to embed or connect to user devices and various MCU master control devices10. With a variety of indicators, easy to view the working status of the moduleSpecification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 8cm * 6cm * 2cm / 3.15inch * 2.36inch * 0.79inch Qty per Carton 200 Carton Weight 7.00kgs / 15.43lb Carton Size 32cm * 33cm * 42cm / 12.6inch * 12.99inch * 16.54inch Loading Container 20GP: 601 cartons * 200 pcs = 120200 pcs 40HQ: 1395 cartons * 200 pcs = 279000 pcs

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1. Product series: camera module 2. Model: OV2640 3. Purpose: video recorder 4. Power: 3.3W 5. Adapt to T-Camera Plus ESP32-DOWDQ6 8MB SPRAMSpecification: Package Weight One Package Weight 0.04kgs / 0.10lb One Package Size 11cm * 11cm * 3cm / 4.33inch * 4.33inch * 1.18inch Qty per Carton 100 Carton Weight 4.00kgs / 8.82lb Carton Size 57cm * 32cm * 24cm / 22.44inch * 12.6inch * 9.45inch Loading Container 20GP: 609 cartons * 100 pcs = 60900 pcs 40HQ: 1414 cartons * 100 pcs = 141400 pcs

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1. Model Number: MINI 32 V2.0 2. Main chip: ESP 32 3. Flash Memory Chip: 25Q32 4. Charging IC Chip: TP4054 5. USB to Serial Port Chip: CH340C 6. Package Includes: 1 x TTGO MINI 32 V2.0 ESP32 WiFi Bluetooth Module 2 x Long Female Pins 2 x Normal Pins 4 x Short Female PinsSpecification: Package Weight One Package Weight 0.07kgs / 0.15lb One Package Size 11cm * 11cm * 3cm / 4.33inch * 4.33inch * 1.18inch Qty per Carton 100 Carton Weight 7.50kgs / 16.53lb Carton Size 57cm * 32cm * 24cm / 22.44inch * 12.6inch * 9.45inch Loading Container 20GP: 609 cartons * 100 pcs = 60900 pcs 40HQ: 1414 cartons * 100 pcs = 141400 pcs

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Hardware Specifications: 1. Chipset: ESPRESSIF-WROVER-B 240MHz Xtensa single-/dual-core 32-bit LX6 microprocessor 2. FLASH: QSPI flash 4MB / PSRAM 8MB 3. SRAM: 520KB SRAM 4. Button: reset 5. Power indicator lamp: red 6. USB to TTL: CH9102F QFN24 7. Modular interface: UART, SPI, SDIO, I2C, LED PWM, TV PWM, I2S, IRGPIO, capacitor touch sensor, ADC, DACLNA pre-amplifier 8. On-board clock: 40MHz crystal oscillator 9. Working voltage: 2.7V-3.6V 10. Working current: about 30mA 11. Working temperature range: -40~ +85 Degrees Celsius 12. Size&weight: 40.27x31.07x8.13mm, 6.42g Power Supply Specifications: 1. Power Supply: USB 5V/1A 2. Charging current: 500mA 3. Battery: 3.7V lithium battery WiFi Description: 1. Standard FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC 2. Protocol: 802.11 b/g/n(802.11n, speed up to150Mbps)A-MPDU and A-MSDU polymerization, support 0.4??S Protection interval 3. Frequency range: 2.4GHz~2.5GHz(2400M~2483.5M) 4. Transmit Power: 22dBm 5. Communication distance: 300m Bluetooth Description: 1. Protocol: meet bluetooth v4.2BR/EDR and BLE standard 2. Radio frequency: with -97dBm sensitivity NZIF receiver Class-1, Class-2&Class-3 emitter AFH 3. Audio frequency: CVSD&SBC audio frequency Software specification Description: 1. WiFi Mode: Station/SoftAP/SoftAP+Station/P2P 2. Security mechanism: WPA/WPA2/WPA2-Enterprise/WPS 3. Encryption Type : AES/RSA/ECC/SHA 4. Firmware upgrade: UART download/OTA???Through network/host to download and write firmware??? 5. Software Development: Support cloud server development /SDK for user firmware development 6. Networking protocol: IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT 7. User Configuration: AT + Instruction set, cloud server, Android/iOS APP 8. OS: FreeRTOSSpecification: Package Weight One Package Weight 0.07kgs / 0.15lb One Package Size 11cm * 11cm * 3cm / 4.33inch * 4.33inch * 1.18inch Qty per Carton 100 Carton Weight 7.50kgs / 16.53lb Carton Size 57cm * 32cm * 24cm / 22.44inch * 12.6inch * 9.45inch Loading Container 20GP: 609 cartons * 100 pcs = 60900 pcs 40HQ: 1414 cartons * 100 pcs = 141400 pcs

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Hardware specifications 1. Chipset: ESP32-WROVER-B, AXP192 power management chip 2. Flash: 4MB /16MB 3. Static SRAM: 8MB 4. SRAM: 520 kB SRAM 5. Button: PWR power switch, reset 6. USB to TTL: CP2104 7. Vehicle clock: 40MHz crystal oscillator 8. Peripheral equipment: SIM Nano card slot, Mini PCIE card slot 9. Antenna: Onboard antenna (default) 10. Working voltage: 2.7V to 3.6V 11. Sleep current: About 700ma 12. Operating temperature range: -40 degrees Celsius ~ + 85 degrees Celsius 13. Dimensions: 75 x 33 x 10.5 mm 14. Weight: 14.5g Power Specifications 1. Power input: USB 5V / 1A 2. Charging current: 500 mA 3. Battery input: 3.7-4.2V 4. Charging IC: AXP192 5. JST connector: 2-pin 2.0mm 6. USB: Type C wireless online 1. Standard: FCC / CE-RED / IC / TELEC / KCC / SRRC / NCC (ESP32 chip) 2. Protocol: 802.11 b/g/n (802.11n, speed up to 150Mbps) A-MPDU and A-MSDU aggregation, support 0.4uS guard interval 3. Frequency range: 2.4GHz-2.5GHz (2400M-2483.5M) 4. Transmit power: 22dBm 5. Communication distance: 300m Bluetooth 1. Protocol: Compliant with Bluetooth v4.2BR/EDR and BLE standards 2. Radio frequency: NZIF receiver Class-1 with sensitivity of -97dBm, Class-2&Class-3 transmitter AFH 3. Audio: CVSD&SBC audio Software specifications 1. Wi-Fi mode: Workstation / SoftAP / SoftAP + Station / P2P 2. Security mechanism: WPA / WPA2 / WPA2-Enterprise / WPS 3. Encryption method: AES / RSA / ECC / SHA 4. Firmware upgrade: UART download/OTA (download and write firmware via network/host) 5. Software development: support cloud server development / SDK for user firmware development 6. Network protocol: IPv4, IPv6, SSL, TCP, UDP, HTTP, FTP, MQTT 7. User configuration: AT + command set, cloud server, Android / iOS app 8. Operating system: FreeRTOS SIM7600E suitable for EMEA/Kor/Thailand: 1. LTE-TDD: B38/B40/B41 2. LTE-FDD: B1/B3/B5/B7/B8/B20 3. UMTS/HSPA+: B1/B5/B8 4. GSM/GPRS/EDGE:B3/B8 Packing list 1. SIM7600E-PCIE module x 1 2. LTE antenna x 1 3. GPS antenna x 1 4. Screw x 2Specification: Package Weight One Package Weight 0.03kgs / 0.06lb One Package Size 15cm * 12cm * 2cm / 5.91inch * 4.72inch * 0.79inch Qty per Carton 300 Carton Weight 7.00kgs / 15.43lb Carton Size 36cm * 22cm * 22cm / 14.17inch * 8.66inch * 8.66inch Loading Container 20GP: 1530 cartons * 300 pcs = 459000 pcs 40HQ: 3552 cartons * 300 pcs = 1065600 pcs

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Product Description Hardware Specifications: 1. Main chip: ESP32 2. Module: ESP32-WROVER-B,SIM7600E-H 3. Interface:USB,SD Card,Solar Input interface 4. Flash Memory: 4M Flash / 8M PSRAM 5. Button: Reset,Power switch 6. USB to TTL: CP2104 7. Car Clock: 40MHz 8. SIM Card Size: Nano SIM Card 9. SIM Antenna 10. GPS Antenna 11. Operating Temperature Range: -40-85 degrees 12. Product Size: 111mm x 37mm x 20mm 13. Product Weight: 50g Power Specifications: 1. Working Voltage: 5V input 2. Solar input voltage range???4.4-6V 3. Working Curent: About 200mA 4. Charging Current: 780mA 5. Battery Model: 18650 6. Battery Holder Model: 18650 battery holder 7. JST Connector: 2pin 2mm 8. USB: TYPE-C 3.0 Wi-Fi: 1. Standard: FCC/CE-RED/IC/TELEC/KCC/SRRC/NCC 2. Protocol: 802.11 b/g/n(802.11n???speed up to150Mbps)A-MPDU and A-MSDU polymerization???support 0.4??S Protection interval 3. Frequency: range 2.4GHz~2.5GHz(2400M~2483.5M) 4. Transmit Power: 22dBm 5. Communication distance: 300m Bluetooth: 1. Protocol meet Bluetooth : v4.2BR/EDR and BLE standard 2. Radio Frequency : with -97dBm sensitivity NZIF receiver Class-1, Class-2&Class-3 emitter AFH 3. Audio Frequency : CVSD&SBC audio frequency Software Specification: 1. Wi-Fi Mode : Station/SoftAP/SoftAP+Station/P2P 2. Security Mechanism : WPA/WPA2/WPA2-Enterprise/WPS 3. Encryption Type : AES/RSA/ECC/SHA 4. Firmware Upgrade :UART download/OTA???Through network/host to download and write firmware??? 5. Software Development : Support cloud server development /SDK for user firmware development 6. Networking Protocol : IPV4, IPV6, SSL, TCP/UDP/HTTP/FTP/MQTT 7. User Configuration : AT + Instruction set, cloud server, Android/iOS APP 8. OS : FreeRTOS Version update function: 1. The batterys positive and negative poles are connected to the wrong protection, overcharge and over discharge protection 2. GPS power control, reduce power consumption, the lowest reaches 300uA when sleeping 3. Replacement of ordinary charging IC with solar charging ICSpecification: Package Weight One Package Weight 0.09kgs / 0.20lb One Package Size 11cm * 11cm * 3cm / 4.33inch * 4.33inch * 1.18inch Qty per Carton 100 Carton Weight 8.20kgs / 18.08lb Carton Size 57cm * 32cm * 24cm / 22.44inch * 12.6inch * 9.45inch Loading Container 20GP: 609 cartons * 100 pcs = 60900 pcs 40HQ: 1414 cartons * 100 pcs = 141400 pcs

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Hardware Specifications 1. Chipset: ESPRESSIF-ESP32-WROOM, LAN8720A Ethernet chip, SI 3404 power management chip 2. Flash: 4MB 3. PSRAM: 8MB 4. SRAM: 520 kB SRAM 5. Button: robot, rest 6. External device: TF card slot, C-type interface, PA2369NL 1825-S transformer, HR861153C Ethernet-POE interface 7. USB to TTL: CP 2104 8. Modular interface: SD card, UART, SPI, I2C, PWM, I2S, ADC 9. Satellite clock: 32.768 MHz crystal oscillator 10. Operating temperature range: -40 degrees Celsius to +85 degrees Celsius 11. Size: 70x52.3x17mm 12. Weight: 26.85g Power Specifications 1. Power input: -C type USB 5V 2. HR861153C Ethernet-POE interface: 50V 3. Working voltage: 2.7V-3.6V 4. Output current: about 1.2A 5. Charging current: 500 mA 6. USB: Type C USB Wi-Fi 1. Standard: FCC/CE-Red/IC/TELEC/KCC/SRRC/NCC (ESP 32 chip) 2. Protocol: 802.11 b/g/n (802.11n, acceleration 150 Mbps) A-MPDU and A-MSDU aggregation, support 0.4??S guard interval 3. Frequency range: 2.4GHz~2.5GHz (2400 m~2483.5M) 4. Transmit power: 22 dBm 5. Communication distance: 300 meters Bluetooth 1. Protocol: Complies with Bluetooth V4.2BR/EDR and BLE standards 2. Radio frequency: -97 dBm sensitivity nzif receiver class-1 class-2 class-3 emitter AFH 3. Audio: CVSD&SBC audio Software Specification 1. Wi-Fi mode: workstation/SoftAP/SoftAP+Station/P2P 2. Security mechanism: WPA/WPA 2/WPA 2-Enterprise/WPS 3. Encryption type: AES/RSA/ECC/SHA 4. Firmware upgrade: UART download/OTA (download and write firmware via network/host) 5. Software development: support cloud server development/sdk for user firmware development 6. Network protocol: IPv 4, IPv 6, SSL, TCP/UDP/HTTP/FTP/MQTT 7. User configuration: +instruction set, cloud server, Android/iOSapp 8. OS: FreeRTOSSpecification: Package Weight One Package Weight 0.04kgs / 0.10lb One Package Size 15cm * 10cm * 1cm / 5.91inch * 3.94inch * 0.39inch Qty per Carton 300 Carton Weight 11.50kgs / 25.35lb Carton Size 42cm * 26cm * 26cm / 16.54inch * 10.24inch * 10.24inch Loading Container 20GP: 939 cartons * 300 pcs = 281700 pcs 40HQ: 2180 cartons * 300 pcs = 654000 pcs

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1. Low-power sleep mode design 2. One way alarm voltage output 3. It can detect the voltage of the battery in real time and make a low battery voltage alarm, suitable for battery-powered applications, and a wide voltage supply range from DC5V to DC16V 4. Eight-way alarm detection, users can set different content for each alarm SMS, The input port can be selected as NC or NO alarm mode 5. 6 groups of called numbers can be set. When the alarm input has a trigger signal, an alarm message will be sent to the alarm number, or an alarm will be called directly 6. Easy to use, supports iOS and Android apps, you can simply send text messages through the app to set up 7. Wide application fields: mainly home security, warehouses, remote unattended stations, remote monitoring of equipment parameters (such as oil pressure, air pressure, water pressure, voltage, etc.), product upgrades (voltage monitoring, overload monitoring, etc.), safety protection (Smoke, fire, water level monitoring, gas, etc.) Other unattended points 8. Size: 8 x 5.8 x 2.2cmSpecification: Package Weight One Package Weight 0.18kgs / 0.41lb One Package Size 10cm * 8cm * 5cm / 3.94inch * 3.15inch * 1.97inch Qty per Carton 100 Carton Weight 21.00kgs / 46.30lb Carton Size 52cm * 42cm * 22cm / 20.47inch * 16.54inch * 8.66inch Loading Container 20GP: 555 cartons * 100 pcs = 55500 pcs 40HQ: 1288 cartons * 100 pcs = 128800 pcs

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1. Convenient and portable, durable2. Made of high-quality copper wire material, safe and durable to use3. Healthy materials, safe and non-toxic, durable and dirt-resistant4. Name: Jumper special wire for breadboard5. Dimensions: 2mm, 5mm, 7mm, 10mm, 12mm, 15mm, 17mm, 20mm, 22mm, 25mm, 50mm, 75mm, 100mm, 125mmSpecification: Package Weight One Package Weight 0.13kgs / 0.29lb One Package Size 10cm * 5cm * 6cm / 3.94inch * 1.97inch * 2.36inch Qty per Carton 100 Carton Weight 9.00kgs / 19.84lb Carton Size 52cm * 22cm * 32cm / 20.47inch * 8.66inch * 12.6inch Loading Container 20GP: 728 cartons * 100 pcs = 72800 pcs 40HQ: 1691 cartons * 100 pcs = 169100 pcs

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1. Chip solution: TPA3116D2 (with AM interference suppression function)2. With or without filter: Yes (the sound is more mellow and clear after filtering)3. Adapted supply voltage: 5~27V4. Adapted speakers: 30W~200W, 4ohms, 8ohms5. Number of channels: left and right dual channels (stereo)6. Bluetooth version: 5.07. Bluetooth transmission distance: 15 meters (unobstructed)8. Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection9. Tip: Only when the audio input is sufficient and the power supply voltage/current is sufficient, there will be sufficient output power. The higher the power supply voltage, the higher the relative power, and speakers with different impedances will have different output powers. In the case of sufficient voltage and current, the greater the ohms of the speaker, the lower the relative sound power, please pay attention!10. Power supply voltage:-12V ------ 8 ohm speaker/12W (left channel) + 12W (right channel), 4 ohm speaker/20W+ 20W-15V ------ 8 ohms/18+ 18W, 4 ohms/more than 30 + 30W-19V ------ 8 ohms/32 + 32W, 4 ohms/more than 45 + 45W-24V ------ 8 ohms/38 + 38W, 4 ohms/more than 55 + 55WSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 10cm * 5cm / 5.91inch * 3.94inch * 1.97inch Qty per Carton 100 Carton Weight 13.00kgs / 28.66lb Carton Size 52cm * 52cm * 32cm / 20.47inch * 20.47inch * 12.6inch Loading Container 20GP: 308 cartons * 100 pcs = 30800 pcs 40HQ: 715 cartons * 100 pcs = 71500 pcs

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1. Chip solution: TPA3116D2 (with AM interference suppression function)2. With or without filter: Yes (the sound is more mellow and clear after filtering)3. Adapted supply voltage: 5~27V4. Adapted speakers: 30W~200W, 4ohms, 8ohms5. Number of channels: left and right dual channels (stereo)6. Bluetooth version: 5.07. Bluetooth transmission distance: 15 meters (unobstructed)8. Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection9. Tip: Only when the audio input is sufficient and the power supply voltage/current is sufficient, there will be sufficient output power. The higher the power supply voltage, the higher the relative power, and speakers with different impedances will have different output powers. In the case of sufficient voltage and current, the greater the ohms of the speaker, the lower the relative sound power, please pay attention!10. Power supply voltage:-12V ------ 8 ohm speaker/12W (left channel) + 12W (right channel), 4 ohm speaker/20W+ 20W-15V ------ 8 ohms/18+ 18W, 4 ohms/more than 30 + 30W-19V ------ 8 ohms/32 + 32W, 4 ohms/more than 45 + 45W-24V ------ 8 ohms/38 + 38W, 4 ohms/more than 55 + 55WSpecification: Package Weight One Package Weight 0.12kgs / 0.25lb One Package Size 15cm * 10cm * 5cm / 5.91inch * 3.94inch * 1.97inch Qty per Carton 100 Carton Weight 13.00kgs / 28.66lb Carton Size 52cm * 52cm * 32cm / 20.47inch * 20.47inch * 12.6inch Loading Container 20GP: 308 cartons * 100 pcs = 30800 pcs 40HQ: 715 cartons * 100 pcs = 71500 pcs

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1. Audio source input: Bluetooth + AUX + U disk + computer USB (plug and play)2. Adapter power supply: DC5-24V (high voltage is recommended for high power)3. Output power: 50Wx24. Adapted speakers: 10-100W, 4-8 ohms5. Number of channels: Left and right dual channels (stereo)6. Bluetooth version: 5.07. Transmission distance: More than 15 meters, no obstruction8. Bluetooth name: Wuzhi Audio9. Protection mechanism: Overheating, overcurrent, short circuit protection10. Power supply voltage:-12V: 8 ohms / 12W + 12W, 4 ohms / 20W + 20W-15V: 8 ohms/1 8W+ 18W, 4 ohms/30W+30W-19V: 8 ohms/30W+30W, 4 ohms/40W+40W-24V: 8 ohms/40W+40W, 4 ohms/50W+50W11. Size: About 6x6x2.9 cm12. Weight: About 96g (including packaging)13. Reminder: There will be enough output power only when the audio input is enough and the power supply/current is enough. the higher the power supply voltage, the higher the relative power, and speakers with different impedances will have different output powers. In the case of sufficient voltage and current, the larger the horn ohms, the smaller the relative sound powerSpecification: Package Weight One Package Weight 0.11kgs / 0.24lb One Package Size 15cm * 12cm * 3.5cm / 5.91inch * 4.72inch * 1.38inch Qty per Carton 100 Carton Weight 11.00kgs / 24.25lb Carton Size 30cm * 50cm * 36.7cm / 11.81inch * 19.69inch * 14.45inch Loading Container 20GP: 484 cartons * 100 pcs = 48400 pcs 40HQ: 1124 cartons * 100 pcs = 112400 pcs

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1. Support MP3, WAV decoding format2. Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/483. 24-bit DAC output, dynamic range supports 90dB, signal-to-noise ratio supports 85dB4. Onboard 64Mbit (8M bytes) Flash memory, no memory card required5. Comes with 5W class D power amplifier, which can directly drive 4 ohm/3-5W speakers6. The UART serial port controls the voice broadcast function, which can control the functions of play, pause, song selection, volume addition and subtraction, and the selection of songs can reach 65535 songs, and the baud rate is 9600 bit/s7. Support IO trigger playback function, 8 IO ports can trigger 8 tracks individually or 8 IO ports can trigger 255 tracks in combination8. Support One Line single-bus serial port control, which can control functions such as play, pause, song selection, volume addition and subtraction, etc.9. Support 3 configuration IOs for up to 7 working modes selection, DIP switch settings, easy to operate10. Working voltage: DC 5V11. Size: about 4x3.5cmSpecification: Package Weight One Package Weight 0.04kgs / 0.10lb One Package Size 8cm * 6cm * 3cm / 3.15inch * 2.36inch * 1.18inch Qty per Carton 500 Carton Weight 22.00kgs / 48.50lb Carton Size 50cm * 50cm * 44cm / 19.69inch * 19.69inch * 17.32inch Loading Container 20GP: 242 cartons * 500 pcs = 121000 pcs 40HQ: 562 cartons * 500 pcs = 281000 pcs

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1. Support MP3, WAV decoding format. 2. Support sampling rate (KHz): 8/11.025/12/16/22.05/24/32/44.1/48. 3. 24-bit DAC output, dynamic range supports 90dB, signal-to-noise ratio supports 85dB. 4. DC 6~35V ultra-wide working voltage. 5. Support up to 32G memory card, can connect to computer via USB data cable to update and store audio files. 6. Integrated high-power amplifier output, driving 4?? speakers up to 20W, driving 8?? speakers up to 10W. 7. The UART serial port controls the voice broadcast function, which can control play, pause, song selection, volume addition and subtraction and other functions. The selection of songs is up to 65535 songs, and the baud rate is 9600 bit/s. 8. Support IO one-to-one trigger playback function, 8 IO ports can trigger 8 tracks individually or 8 IO ports can trigger 255 tracks in combination. 9. Support One_line single-bus serial port control, which can control functions such as play, pause, song selection, volume addition and subtraction. 10. Support 3 configuration IOs for up to 7 working modes selection, DIP switch settings, easy to operate. 11. 8-way IO design ESD protectionSpecification: Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 10cm * 10cm * 2cm / 3.94inch * 3.94inch * 0.79inch Qty per Carton 400 Carton Weight 11.00kgs / 24.25lb Carton Size 52cm * 42cm * 42cm / 20.47inch * 16.54inch * 16.54inch Loading Container 20GP: 290 cartons * 400 pcs = 116000 pcs 40HQ: 674 cartons * 400 pcs = 269600 pcs

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1. 12V power supply, power failure memory2. With bluetooth call and recording function, bluetooth version 5.03. Decode MP3, WMA, WAV, FLAC, APE lossless format music4. Read USB disk, support SD interface5. Support FM radio, frequency band (87.5MHZ-108.0MHZ)6. External audio input LINE IN 7. Support 10m distance infrared remote control operation8. Pushbuttons: six buttons for multi-directional control, REC / REPEAT / VOL- / AUTO / VOL+ / MODE9. Large remote control uses 2 x 7 batteries (not included), small remote control uses button batteries10. Dimensions: length 112 x width 62 mmKey operation details.1. REC: Press the REC button to start recording, press the REC button again to cancel the recording function and play the recording file; when recording than a storage device needs to be connected, e.g. U disk or TF card2. REPEAT: Press once for the single song loop function, then press again to cancel the single song loop and play in sequence3. FD-: switch to the previous folder, long press to fast back4. FD+: switch to the next folder, long press to fast forward5. AUTO button (play/pause): short press for play/pause in MP3; short press for play/pause in FM, long press for auto receive and save station; short press for play/pause in Bluetooth6. MODE button: switch between USB / SD card / FM / Audio input / Bluetooth function in sequenceSpecification: Package Weight One Package Weight 0.12kgs / 0.26lb One Package Size 14cm * 9cm * 6cm / 5.51inch * 3.54inch * 2.36inch Qty per Carton 262 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 262 pcs = 46374 pcs 40HQ: 412 cartons * 262 pcs = 107944 pcs

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1. Operating voltage: DC 8~24V 2. Operating mode: class D (PMW modulation) 3. Number of channels: ctereo (dual channel) 4. Maximum output power: 18Wx@12V 4 Ohm 10Wx@12V 8 Ohm 15Wx@16V 8 Ohm 20Wx@20V 8 Ohm 30Wx@24V 8 Ohm 5. Adapted speakers(30W~150W): 4 ohms (8-12V power supply) 8 ohm (8-24V power supply) 6. Module protection mechanism: power reverse connection protection, short circuit protection, self-recovery overheating protection Specification: Package Weight One Package Weight 0.03kgs / 0.07lb One Package Size 10cm * 5cm * 2cm / 3.94inch * 1.97inch * 0.79inch Qty per Carton 340 Carton Weight 11.70kgs / 25.79lb Carton Size 42cm * 32cm * 26cm / 16.54inch * 12.6inch * 10.24inch Loading Container 20GP: 763 cartons * 340 pcs = 259420 pcs 40HQ: 1771 cartons * 340 pcs = 602140 pcs

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1. Adaptable power supply: DC5-26V/5A or more2. Bluetooth version: 5.03. Audio input: Bluetooth + AUX + U disk + USB sound card4. Volume adjustment: 360 degree infinitely adjustable encoder5. Audio output: Passive speaker + 3.5mm audio interface6. Output power: 50Wx27. Output filtering: filter-free8. Protection mechanism: static electricity, overcurrent, short circuit, overheating, etc.9. Heat dissipation method: heat sink + shell10. Applicable speakers: 4-8 Ohm 10-200W11. Large area heat sink with special heat-conducting silicone paste close to the shell of the auxiliary copper heat dissipation, heat dissipation area increased exponentially, to ensure the product full power high-performance operation12. Size: 84x65x25mm13. Weight: about 85gSpecification: Package Weight One Package Weight 0.10kgs / 0.22lb One Package Size 11cm * 9cm * 5cm / 4.33inch * 3.54inch * 1.97inch Qty per Carton 296 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 296 pcs = 52392 pcs 40HQ: 412 cartons * 296 pcs = 121952 pcs

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1. Gold-sunk wiring for better sound 2. Optimized ground wiring to eliminate bottom noise 3. Immersion gold circuit board, car-grade amplifier chip, Nichicon professional audio filter capacitors 4. Input mode: 3.5mm audio cable input or 3P 2.54mm terminal input 5. Can be connected to 2/4/6/8 ohm speakers 6. Protection function: reverse power input protection, short circuit protection, over-current protection, overheat protection 7. Supply voltage: DC12-18V 8. Output power: 2x80W stereo (18V / 4 ohms) and 1x120W pure bass (18V / 2 ohms) 9. Potentiometer knob opening: 7mm 10. Mounting hole spacing: 25.4x48.26mm (Bluetooth module spacing compatible) 11. PCB size: 72.36 x 66.65mm 12. Overall (including heat sink):: 72.36 x 96 x 27mm 13. Weight: 170gSpecification: Package Weight One Package Weight 0.24kgs / 0.52lb One Package Size 15cm * 10cm * 4cm / 5.91inch * 3.94inch * 1.57inch Qty per Carton 118 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 118 pcs = 20886 pcs 40HQ: 412 cartons * 118 pcs = 48616 pcs

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1. Speaker impedance: 4-8 ohms 2. Speaker power: 10-50W 3. Input current: 3A 4. Input voltage: 9-24V 5. Function: Support Wuzhi Audio App 6. Audio input: BT+AUX+USB+USB sound card 7. Power output: 30W+30W 8. Number of channels: 2.0 9. Protection mechanism: overcurrent, overheating, short circuit, anti-static protection 10. Dimensions: 76 x 50 x 18mm 11. Weight: about 82G 12. Note: 24V battery cannot be used for power supply, because the full voltage of the battery will be around 28VSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 10cm * 8cm * 4cm / 3.94inch * 3.15inch * 1.57inch Qty per Carton 288 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 288 pcs = 50976 pcs 40HQ: 412 cartons * 288 pcs = 118656 pcs

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1. Speaker impedance: 4-8 ohms2. Speaker power: 10-50W3. Input current: 3A4. Input voltage: 9-24V5. Function: Support Wuzhi Audio App6. Audio input: BT+AUX+USB+USB sound card7. Power output: 15W+15W+30W8. Number of channels: 2.19. Protection mechanism: overcurrent, overheating, short circuit, anti-static protection10. Dimensions: 76 x 60 x 22mm11. Weight: about 102G12. Note: 24V battery cannot be used for power supply, because the full voltage of the battery will be around 28VSpecification: Package Weight One Package Weight 0.11kgs / 0.24lb One Package Size 10cm * 8cm * 4cm / 3.94inch * 3.15inch * 1.57inch Qty per Carton 242 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 242 pcs = 42834 pcs 40HQ: 412 cartons * 242 pcs = 99704 pcs

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1. Bluetooth version: 5.0 (unobstructed, 15 meters)2. Input sensitivity: 500mV3. Input mode: AUX+Bluetooth4. Number of power channels: 2.1 channels5. Adaptable speaker: 20-100W, 4-8 ohms6. Protection mechanism: anti-reverse connection, overheating and overcurrent, short circuit protection.7. Adaptable power supply: DC 12-24V/5A or above (cannot be connected to 24V battery pack).8. Output power: less than 50W for left and right channel, less than 100W for subwoofer.9. Size: about 9.3 x 9 x 2.2cm10. Weight: about 185g (including packaging)Tip: In the case of enough audio input, enough power supply voltage/current, there will be enough output power, the higher the power supply voltage the higher the output power, the lower the impedance of the speaker the higher the output power, please make sure that the adapted power supply power is greater than the actual working power of the amplifierSpecification: Package Weight One Package Weight 0.20kgs / 0.43lb One Package Size 12cm * 12cm * 3cm / 4.72inch * 4.72inch * 1.18inch Qty per Carton 146 Carton Weight 30.00kgs / 66.14lb Carton Size 63cm * 63cm * 15cm / 24.8inch * 24.8inch * 5.91inch Loading Container 20GP: 447 cartons * 146 pcs = 65262 pcs 40HQ: 1039 cartons * 146 pcs = 151694 pcs

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1. Power supply range: 3.7-5.5V2. Exquisite double-layer board design, large area of copper, stable and reliable3. Anti-static bag packaging, to avoid static electricity damage to the product on the way to the shipment4. Weight: about 10.5 g5. Size: about 4.5 x 3.6 cmModule highlights:1. Strong sound quality, on-board 2W mono amplifier (5V power supply up to 3W) directly connected to the speakers (recommended with 4Ω 3W speakers), 3.5mm gold-plated headphone socket can be connected to headphones or external audio2. With MicroUSB power supply interface, through the cell phone cable using mobile power or USB charger power supply, can also be used 3.7V lithium battery, USB 5V power supply3. Support TF card (cell phone internal memory card), U disk playback mode4. With speaker terminals without welding, convenient wiring, modular design for easy modification5. Supporting MP3 format, power on automatic playback, playback status when the red LED indicator update6. Support U disk (tested 32G), TF card (tested 16G) playback mode; power on the default TF card mode, if the TF card does not exist automatically jump to the U disk mode, and the two devices are installed, you can manually set up the playback mode, please see the key operation instructions for details7. Keys can be adjusted up and down the track switching, volume + -, pause / play, mode switching, key to set a single song / full cycle, power on the default full cycle, press the Repeat key to replace the cycle modeKey operation description:1. Prev/V--key: short press to switch to the previous song, long press for the volume decreasing2. Next/v++ key: short press to switch to the next song, long press to increase the volume3. P/P/Mode key: short press for play/pause switch, long press for U disk, TF card mode selection4. Repeat key: short press for single song / full song cycle switch (no long press function)Attention:1. Long press time is about 2s2. If you use U disk mode, 5V power supply is recommended, some U disk does not support 3.7V power supplySpecification: Package Weight One Package Weight 0.02kgs / 0.05lb One Package Size 8cm * 6cm * 5cm / 3.15inch * 2.36inch * 1.97inch Qty per Carton 210 Carton Weight 5.30kgs / 11.68lb Carton Size 50cm * 37cm * 32cm / 19.69inch * 14.57inch * 12.6inch Loading Container 20GP: 450 cartons * 210 pcs = 94500 pcs 40HQ: 1045 cartons * 210 pcs = 219450 pcs

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1. Bluetooth version: 5.02. Operating voltage: DC8-24V3. Transmission distance: 15 meters (visible and unobstructed)4. Number of channels: dual-channel (stereo)5. Adaptable speaker power (30W-150): 4 ohms (8-12V power supply), 8 ohms (8-24V power supply), 16 ohms (8-24V power supply)6. Module protection mechanism: reverse power supply protection, short-circuit protection, self-recovery overheating protection7. Note: to improve the performance of the module, it is recommended to work more than 20W x 2 application scenarios under the amplifier chip plus heat dissipation8. Anti-static bag packaging, acrylic panels have a protective film, please tear off when assembling9. Module size: about 5 x 3.3 cmOperating instructions:1. After turning on the power, the blue indicator light will flash quickly to enter the Bluetooth mode2. Enter pairing mode and wait for pairing after announcing the beep3. Mobile phone bluetooth search to XY-P15W (amplifier board device name), click XY-P15W connection4. After successful connection, play the tone, the indicator light will be on, you can play the music on your cell phone, and the indicator light will flash slowly when playing the music5. Bluetooth disconnect the amplifier board to prepare for the next pairing, and play the tone after entering the pairing mode waiting for the pairingPrecautions for use:1. Amplifier board to use as far away from WIFI signals (router)2. Recommended power supply voltage DC 8-24V, more than 26V, the chip will be burned3. Connect 4 ohm speakers when the power supply does not exceed 12V, connect 8 ohm speakers when the power supply does not exceed 24V4. Recommended power supply current is more than 2A5. Module working power more than 20W x 2, need to add heat sinks6. The speaker cable should not be too long, ensure that 1 meter or less is suitable7. Pay attention to electrostatic protection, contact the amplifier board before the need to release the hand of static electricity, to avoid static electricity will chip breakdown, bluetooth chip is more sensitive to static electricity8. It is recommended to adapt to the speaker rated power 30W and above, to avoid burning the speaker heatSpecification: Package Weight One Package Weight 0.04kgs / 0.09lb One Package Size 12cm * 6cm * 2cm / 4.72inch * 2.36inch * 0.79inch Qty per Carton 360 Carton Weight 12.24kgs / 26.98lb Carton Size 50cm * 38cm * 32cm / 19.69inch * 14.96inch * 12.6inch Loading Container 20GP: 438 cartons * 360 pcs = 157680 pcs 40HQ: 1018 cartons * 360 pcs = 366480 pcs

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1. Power supply range: 5V DC2. Operating voltage: 2.5V-5.5V 3. Output Power: 3W x 2 (5V 4Ω)4. PAM8403 is a small digital amplifier chip, high-definition sound quality highlights the advantages of digital chips5. Circuit using a reasonable peripheral configuration, power supply filter upgrade to 470uf, 1.6mm fiberglass plate, the amplifier board to do the meticulous6. Output 3W + 3W high-fidelity sound quality, potentiometer using the original anti-surface body, life expectancy of up to 15 years, potentiometer with a switch can be counterclockwise directly cut off the power supply. 7. Please ensure that the power supply voltage does not exceed 5.5V, and please do not reverse the positive (+) negative (-) polarity, otherwise it will burn the circuit board!8. Size: with potentiometer about 29.5 x 20.2 x 15 mm, module about 21 x 18 mmSpecification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 8cm * 5cm * 2cm / 3.15inch * 1.97inch * 0.79inch Qty per Carton 630 Carton Weight 7.40kgs / 16.31lb Carton Size 50cm * 37cm * 32cm / 19.69inch * 14.57inch * 12.6inch Loading Container 20GP: 450 cartons * 630 pcs = 283500 pcs 40HQ: 1045 cartons * 630 pcs = 658350 pcs

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1. The sound quality using this module is very good.2. Mono digital audio amplifier chip.3. High output and low power consumption.4. Applicable speaker impedance: 4-8 ohms (8 ohms is best).Product specifications:1. Power amplifier chip: TPA31182. Working voltage: DC8-24V3. Output power: 60W/30W4. PCB board size: 45 x 35mm/1.77 x 1.4in5. Weight: 12.3 gramsSpecification: Package Weight One Package Weight 0.02kgs / 0.04lb One Package Size 8cm * 5cm * 3cm / 3.15inch * 1.97inch * 1.18inch Qty per Carton 240 Carton Weight 4.70kgs / 10.36lb Carton Size 34cm * 3cm * 32cm / 13.39inch * 1.18inch * 12.6inch Loading Container 20GP: 8169 cartons * 240 pcs = 1960560 pcs 40HQ: 18965 cartons * 240 pcs = 4551600 pcs

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1. Product name: TPA6120 headphone amplifier board2. Chip type: TPA6120A23. Input voltage: Dual DC / AC 12-24V(recommend dual DC / AC 2V 30W)4. Output impedance: 8-600 Ohm5. Protection function: Short circuit protection, over temperature protection 6. Size: 80*52*19mm7. Weight: 45gSpecification: Package Weight One Package Weight 0.08kgs / 0.17lb One Package Size 12cm * 6cm * 2cm / 4.72inch * 2.36inch * 0.79inch Qty per Carton 200 Carton Weight 15.50kgs / 34.17lb Carton Size 50cm * 32cm * 22cm / 19.69inch * 12.6inch * 8.66inch Loading Container 20GP: 757 cartons * 200 pcs = 151400 pcs 40HQ: 1758 cartons * 200 pcs = 351600 pcs

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1. Brand new and high quality 2. The male ends meant for insertion into standard female sockets and the female ends are meant for insertion onto standard male headers 3. The cables can be separated to form an assembly containing the number of wires you require for your connection and to support non-standard odd-spaced headers 4. Made of high-grade copper wire material for safe and durable to use.Specification: General Material ABS Product Size 21*5.5cm Weight 30g Package Weight One Package Weight 0.06kgs / 0.13lb One Package Size 21cm * 6cm * 0.5cm / 8.27inch * 2.36inch * 0.2inch Qty per Carton 400 Carton Weight 15.20kgs / 33.51lb Carton Size 46cm * 32cm * 22cm / 18.11inch * 12.6inch * 8.66inch Loading Container 20GP: 823 cartons * 400 pcs = 329200 pcs 40HQ: 1911 cartons * 400 pcs = 764400 pcs

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Features1. The potentiometer adjusts the volume with a switch for easy control of the volume, making it good for DIY speakers.If it is a metal box, you need to bring out the Bluetooth antenna. 2. The copper DC connector is used to withstand high current and no heat. 3. Capacitor 470uf35V solid capacitors ensure power storage and heat dissipation, and stable power supply is a prerequisite for good sound quality. 4. Free DC head lead, compatible with the input power interface of this product, even if you do not have a DC head adapter or battery, it can be easily wired. 5. Bluetooth 5.0 version, the transmission efficiency is higher, the transmission distance is farther. Precautions for use: The power switch on the board is the standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or unplug the DC plug on the machine for a long time.Specification1. Material: ABS plastic 2. Bluetooth version: 5.0 3. Adaptation supply voltage: 5-24V(optional 9/12/15/18/24V adapter, high power recommended high voltage) 4. Adapter speaker: 30-200W, 4 ohms, 8 ohms 5. Number of channels: Left and right stereo(stereo) 6. Bluetooth transmission distance: 15m(without occlusion) 7. Protection mechanism: Self-recovery overheat protection, self-recovery short circuit protection 8. Size: 55 x 38 x 17mm Tip: To have enough out put power if the input is sufficient and the supply voltage/current is sufficient. The power supply voltage is higher and the relative power will be larger. The speakers with different impedances will have different output power. In the case of sufficient voltage and current, the larger the ohms of the horn, the smaller the relative sound powre. Please pay attention! Power supply voltage: 12V--8 ohm speaker/12W(left channel) + 12W(right channel), 4 ohm speaker/20W + 20W 15V--8 ohms/18 + 18W, 4 ohms/greater than 30 + 30W 19V--8 ohms/32 + 32W, 4 ohms/greater than 45 + 45W 24V--8 ohms/38 + 38W, 4 ohms/greater than 50 + 50WSpecification: Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 13cm * 6cm * 3cm / 5.12inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 9.00kgs / 19.84lb Carton Size 32cm * 32cm * 53cm / 12.6inch * 12.6inch * 20.87inch Loading Container 20GP: 491 cartons * 200 pcs = 98200 pcs 40HQ: 1140 cartons * 200 pcs = 228000 pcs

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Product Features1. Output relay switching capability: Capable of controlling loads with voltages up to 250V. Requires a 12V power supply. 2. Small Size: The circuit board measures only 35x30x17mm. 3. User-Adjustable Operating Mode: Self-locking, interlocking, inching, and time-delay modes can be adjusted via pin short-circuit caps. 4. Learning Pairing: You can learn to pair with any remote controller with the same frequency (dont worry if you lose your remote during use; simply buy a new one and learn the code without having to replace the entire set, significantly saving costs).Technical Parameters1. Operating Voltage: DC 12V (3V/6V/9V/24V available on request) 2. Quiescent Current: Less than or equal to 10mA 3. Operating Temperature: -40 degrees Celsius to +80 degrees Celsius 4. Receiver Sensitivity: More than or equal to -95dB 5. Operating Frequency: Commonly 315MHz, 433.92MHz (other frequencies available on request) 6. Output Current: Less than or equal to 10A 7. Operating Mode: Inching, Self-Lock, Interlock, Delay (Adjustable) 8. Output Mode: Contact Output (AC and DC controllable)ApplicationsThis product uses an intelligent microprocessor control system and is suitable for garage door control, lighting control, remote curtain control, access control systems, and various motor control systems. It features a compact size, easy installation, and safe and reliable operation.Learn How to Pair Code1. Inching Learning Method: Press the pairing button on the control panel once. The LED indicator will flash once. Then, press the button on the remote control to be paired. The LED indicator on the control panel will flash several times, indicating successful pairing. 2. Self-locking Learning Method: Press the pairing button on the control panel twice. The LED indicator will flash twice. Wait until the LED indicator turns off. Then, press the button on the remote control to be paired. The LED indicator on the control panel will flash several times, indicating successful pairing. 3. Interlocking Learning Method: Press the pairing button on the control panel three times. The LED indicator will flash three times. After the LED indicator turns off, press the A and B buttons on the remote control to be paired. The LED indicator on the control panel will flash several times, indicating successful pairing. 4. 5-Second Delay Learning Method: Press the control panel pairing button 4 times in a row. The LED indicator will flash 4 times. After the LED indicator goes off, press the button on the remote control you want to pair. The control panel LED indicator will flash several times, indicating successful pairing. 5. 10-Second Delay Learning Method: Press the control panel pairing button 5 times in a row. The LED indicator will flash 5 times. After the LED indicator goes off, press the button on the remote control you want to pair. The control panel LED indicator will flash several times, indicating successful pairing. 6. 15-Second Delay Learning Method: Press the control panel pairing button 6 times in a row. The LED indicator will flash 6 times. After the LED indicator goes off, press the button on the remote control you want to pair. The control panel LED indicator will flash several times, indicating successful pairing.Precautions1. Do not operate with power on. Always turn off the power before operating. Only power on after confirming that everything is working properly. 2. If the remote control battery voltage is low, please replace the batteries immediately. (A low battery voltage in the remote control generally reduces the control range.) 3. When using wireless electronic products, avoid strong interference sources such as metal covers, large electronic devices, and electromagnetic fields to prevent the remote control from being too close to the receiver or causing it to malfunction. 4. Do not use this electronic product improperly. Improper use can reduce product performance and lifespan, and in severe cases, damage the product and pose a safety hazard. 5. The delay time setting is automatically set when entering learning mode. The delay time setting is linked to the number of times the learning button is pressed. Please pay special attention to this.Specification: Package Weight One Package Weight 0.07kgs / 0.15lb One Package Size 7cm * 6cm * 3cm / 2.76inch * 2.36inch * 1.18inch Qty per Carton 100 Carton Weight 5.50kgs / 12.13lb Carton Size 36cm * 25cm * 10cm / 14.17inch * 9.84inch * 3.94inch Loading Container 20GP: 2962 cartons * 100 pcs = 296200 pcs 40HQ: 6878 cartons * 100 pcs = 687800 pcs

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1. Power supply voltage: 9-12VDC input2. Waveforms: square, sine and triangle waves3. Impedance: about 600 ohms4. Frequency: 1Hz-1MHz5. Sine wave:-Amplitude: 0-3V (9V DC input)-Distortion: Less than 1 percent (at 1kHz)-Flatness: +0.05dB 1Hz-100kHz6. Square wave:-Amplitude: 8V (no load 9V DC input)-Rise Time: Less than 50ns (at 1kHz)-Fall time: less than 30ns (at 1kHz)-Symmetry: Less than 5 percent (at 1kHz)7. Triangle wave:-Amplitude: 0-3V (at 9V DC input) -Linearity: Less than 1 percent (up to 100kHz) 10mACircuit features:1. It can generate sine wave, triangle wave and square wave2. Frequency can be from 1HZ-1MHZ, frequency, amplitude adjustable3. 5-bit precision resolution, frequency adjustment with coarse and fine tuning4. Wide range of power supply, can use external power supply 9-12V or 9V battery 5. All direct insertion components, the number of components is small, simple installation and commissioningPrecautions for soldering and mounting, please follow the steps below:1. Components are welded to the front panel, from low to high principle, that is, the first welding low-end components, such as capacitors, resistors, diodes, etc.2. Welding IC sockets, terminals, and finally the power socket, adjustable potentiometer3. Behind the use of diagonal pliers to try to cut short pinsDebugging steps:1. After completing the welding of the IC, XR2206, pay attention to the direction of the IC, the insertion may damage the chip2. Check whether the IC is reverse, such as reverse, please correct in a timely manner3. Insert the power supply, the power supply is 5.5 x 2.1 port, inside and outside the negative pole, the power supply voltage is 9-12V, more than 12V waveform may be unstableSteps for use:1. Insert J1 jumper cap, SIN/TRI blue terminal output sine wave (note that J1, J2 can only be inserted into one of the)2. Insert J2 jumper cap, SIN/TRI blue terminal output triangle wave (note that J1, J2 can only be inserted into one)3. SQU blue terminal outputs pulse4. AMP: sine wave, triangle amplitude adjustment5. FINE: frequency fine-tuning6. Coarse: frequency coarse adjustmentSpecification: Package Weight One Package Weight 0.07kgs / 0.16lb One Package Size 10cm * 6cm * 2cm / 3.94inch * 2.36inch * 0.79inch Qty per Carton 360 Carton Weight 26.30kgs / 57.98lb Carton Size 50cm * 32cm * 32cm / 19.69inch * 12.6inch * 12.6inch Loading Container 20GP: 520 cartons * 360 pcs = 187200 pcs 40HQ: 1209 cartons * 360 pcs = 435240 pcs

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1. Number of component pairs: 1272. Assembly pressure: 85N/cm23. Be sure to apply thermal grease when installing the radiator4. The literal is cold side, and the non-literal is hot side5. Packaging process: standard 704 silicone rubber seal around6. Packaging standard: foam box packaging, storage conditions ambient temperature -10 ~ 40 degrees Celsius7. Working environment: temperature range -55～83 degrees Celsius (excessive ambient temperature will directly affect the cooling efficiency)8. The working state of the cooling plate is that one side is cooling and the other side is heating, and the heating surface must be well dissipated during work. It is strictly forbidden to energize for more than 2 seconds without heat dissipation, so as to avoid overheating and burning.9. Dimensions: 12703: 40x40x4.0mm, 12709: 40x40x3.4mm, 12710: 40x40x3.4mm, 12715: 40x40x3 .3mm10. Other parameters:- 12703: Wire specification: lead length 310+/-5mm, RV standard wire, single head 5mm tin-plated, internal resistance: 4.0~4.3 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=12 ( When starting at rated voltage), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 27W- 12709: Current: less than or equal to 9A, temperature difference: less than or equal to 68 degrees Celsius, voltage: less than or equal to 15.2V, hot end temperature: 82W- 12710: Wire specification: lead length 300+/-5mm, RV standard wire, single head 5mm tin plated, internal resistance: 1.2~1.5 ohms (ambient temperature 23+/-1 degrees Celsius, 1kHZ Ac test), working current: Imax=10A ( 15Vmax voltage start), rated voltage: DC12V (Vmax: 15.5V), cooling power: Qcmax 92W- 12715: Voltage: less than or equal to 15.4V, current: less than or equal to 15A, cold output: 134WSpecification: Package Weight One Package Weight 0.02kgs / 0.05lb One Package Size 12cm * 12cm * 1cm / 4.72inch * 4.72inch * 0.39inch Qty per Carton 500 Carton Weight 11.00kgs / 24.25lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 500 pcs = 283000 pcs 40HQ: 1314 cartons * 500 pcs = 657000 pcs

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1. Wide range of applications 2. Easy to operate 3. Small size 4. Stable performance 5. Voltage specification: 12V 6. Module size: 5 x 4.4 x 1.8cm (manual measurement) 7. Net weight: 24g 8. Module function: When the water level is lower than the B probe, the water is automatically pumped. 9. Stop pumping when the water level reaches the C probe. 10. The A/B/C water level sensing line can be used with ordinary wires, and the wire ends are exposed to 5CM. Automatically pump water when the water level is below point B 11. Stop pumping when the water level is above point CSpecification: Package Weight One Package Weight 0.04kgs / 0.10lb One Package Size 8cm * 6cm * 2cm / 3.15inch * 2.36inch * 0.79inch Qty per Carton 300 Carton Weight 11.50kgs / 25.35lb Carton Size 52cm * 42cm * 42cm / 20.47inch * 16.54inch * 16.54inch Loading Container 20GP: 290 cartons * 300 pcs = 87000 pcs 40HQ: 674 cartons * 300 pcs = 202200 pcs

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Description1. Onboard TJA1050 CAN controller interface chip2. Chip commonly used pin has led, convenient connection to use3. Pin 5v to power supply4. PCB board size: 22 (mm) x11.5 (mm)Specification1. Brand: Landa tianrui2. Model: LDTR-WG02103. Quantity: 1 piece4. Color: Blue5. Material: PCB6. Chipset: TJA10507. Dimensions: 2.2 cm x 1.2 cm x 0.5 cm8. Weigh: 5g9. Package List: 2 x TJA1050 CAN Controller Interface ModuleSpecification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 4cm * 3cm * 1cm / 1.57inch * 1.18inch * 0.39inch Qty per Carton 7800 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 39cm * 40cm / 23.62inch * 15.35inch * 15.75inch Loading Container 20GP: 284 cartons * 7800 pcs = 2215200 pcs 40HQ: 661 cartons * 7800 pcs = 5155800 pcs

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Features1. Input voltage range: DC 10V-60V2. Rated current: continuous operating current within 6A3. Function: control DC brush motor speed, forward, stop, reverse4. Installation method: panel type, and wiring according to wiring diagram5. Brand: Landa tianrui6. Model: LDTR-WG02657. Material: FR-48. Dimensions: 9.8 cm * 9.1cm* 6cm9. Weight: 124 g10. Package Included: 1 x Motor Speed ControllerNote1. The input of the DC motor governor is DC, and it cannot be directly connected to AC (for example, household 220V AC), otherwise it will burn out.2. The positive and negative poles of the DC power cannot be reversed, otherwise the governor will be bad.3. The motor is not divided into positive and negative. When the running direction is inconsistent with the expectation, the direction can be changed by adjusting the line sequence.4. The potentiometer knob can change the governor output duty cycle, thus changing the motor speed.Specification: Package Weight One Package Weight 0.16kgs / 0.35lb One Package Size 12cm * 10cm * 6cm / 4.72inch * 3.94inch * 2.36inch Qty per Carton 120 Carton Weight 15.00kgs / 33.07lb Carton Size 60cm * 40cm * 36cm / 23.62inch * 15.75inch * 14.17inch Loading Container 20GP: 308 cartons * 120 pcs = 36960 pcs 40HQ: 716 cartons * 120 pcs = 85920 pcs

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Features1. High efficiency, high torque, low heat generating2. Control the speed of a DC motor with this controller3. With reverse polarity protection, high current protection4. With potentiometer5. With reversible switch6. Speed controller is made with high quality circuit board which ensures a longer service life7. This simple and easy-to-use DC motor speed controller has an stable performance8. The output current of this motor speed controller can be adjusted from 6A to 10A, and it is simple to set9. This motor speed controller uses screw terminals for convenient and quick wiringSpecifications1. Input Voltage: DC 6V-30V2. Output Voltage: Linear with load3. Output Current: 6A-10A4. Power: Max. 200W5. Speed Range: 0% to 100%6. Regulation Method: Potentiometer7. Regulation Type: Regulating Current8. Control Frequency: 16KHz9. Wiring Type: Screw terminal10. Rotary Knob Wire Length: 20cm 11. Brand: Landa tianrui12. Model: LDTR-WG026613. Material: FR-414. Dimensions: 7.4 cm * 4.7 cm* 2.8cm15. Weight: 68 g16. Package included: 1 x PWM DC motor speed controllerSpecification: Package Weight One Package Weight 0.08kgs / 0.17lb One Package Size 8cm * 6cm * 3cm / 3.15inch * 2.36inch * 1.18inch Qty per Carton 546 Carton Weight 15.00kgs / 33.07lb Carton Size 56cm * 36cm * 39cm / 22.05inch * 14.17inch * 15.35inch Loading Container 20GP: 339 cartons * 546 pcs = 185094 pcs 40HQ: 787 cartons * 546 pcs = 429702 pcs

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Features1. Bluetooth+AUX audio input, dual-channel stereo output, just a little sound distortion. 2. You can directly adjust the treble and bass. 3. AMP module has AM interference suppression function, shielding cover power inductor, low noise front stage operational amplifier, you will enjoy a more excellent sound quality experience. 4. Audio amplifier board with over-voltage protection, under-voltage protection, over-heat protection, short-circuit protection. 5. The illustration of each interface is printed on the protective plate, making it easy to install and use even without instructions. Use occasion: This 50W+50W dual-channel Bluetooth audio amplifier board is widely use indoor and outdoor, such as family, party, bar, band, concert, carnival etc.Specification1. Material: ABS plastic 2. Bluetooth version: 5.0 3. Input Mode: Bluetooth / AUX 4. Power Output: 50W x 2 5. Channel: 2 6. Chip: TPA3116D2 (AM interference suppression function) 7. Bluetooth transmission distance: 10m (without occlusion) 8. Adapter speaker: 15-100W, 4 ohm s- 8 ohms 9. Signal to noise ratio: Greater than 90dB 10. Adapted power supply: DC 9-24V/ above 2A 11. Output Power: - 15W x 2 at 12V, 8 ohms - 20W x 2 at 19V, 8 ohms - 30W x 2 at 12V, 4 ohms - 30W x 2 at 24V, 8 ohms - 40W x 2 at 19V, 4 ohms - 50W x 2 at 24V, 4 ohms 12. Size: 110 x 70 x 21mmSpecification: Package Weight One Package Weight 0.18kgs / 0.40lb One Package Size 16cm * 12cm * 3cm / 6.3inch * 4.72inch * 1.18inch Qty per Carton 100 Carton Weight 17.00kgs / 37.48lb Carton Size 50cm * 32cm * 33cm / 19.69inch * 12.6inch * 12.99inch Loading Container 20GP: 505 cartons * 100 pcs = 50500 pcs 40HQ: 1172 cartons * 100 pcs = 117200 pcs

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1. Dielectric strength: withstand 750 V (50 Hz AC RMS) for 1 minute, without breaking, flying fox phenomenon 2. Rated power: 2W 3. Small size, easy to carrySpecification: General Material Plastic, Metal Package Weight One Package Weight 0.04kgs / 0.08lb One Package Size 6cm * 3cm * 3cm / 2.36inch * 1.18inch * 1.18inch Qty per Carton 500 Carton Weight 11.00kgs / 24.25lb Carton Size 32cm * 32cm * 30cm / 12.6inch * 12.6inch * 11.81inch Loading Container 20GP: 868 cartons * 500 pcs = 434000 pcs 40HQ: 2015 cartons * 500 pcs = 1007500 pcs

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1. Metal gear, stable transmission and wear-resistant2. Pure copper motor, effectively insulates dust and high temperature3. 304 stainless steel folding, high-precision gear box4. Features: Durable, dust-proof, anti-skid, high temperature resistance, abrasion resistance5. Rated voltage: 6/12v6. Application: electronic locks, smart cars, robots, cameras, etc.7. Size: about 14x17x35mm8. Material: 304 stainless steelSpecification: Package Weight One Package Weight 0.06kgs / 0.14lb One Package Size 10cm * 6cm * 3cm / 3.94inch * 2.36inch * 1.18inch Qty per Carton 200 Carton Weight 1.00kgs / 2.20lb Carton Size 46cm * 32cm * 32cm / 18.11inch * 12.6inch * 12.6inch Loading Container 20GP: 566 cartons * 200 pcs = 113200 pcs 40HQ: 1314 cartons * 200 pcs = 262800 pcs

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Specifications1. Supply voltage: DC 24V 2. Trigger terminal voltage: DC 5~30V (can also be triggered by button) 3. Relay control current: 10A 4. Module size: 63 x 42 x 20mm (length, width and height)Specifications Set1. Press and hold the S1 key and do not let go, after 0.5 seconds, the display will display P-xx, press S2 and S3 to change the working mode. 2. After selecting the working mode, short press the S1 key to enter the A time setting, and the screen displays Axxx. At this time, press the S2 and S3 keys to modify the A time parameters. Short press the S2 and S3 keys to add or subtract 1, and long press to quickly add or subtract. 10. Press the S4 key to set the position of the decimal point. 3. After setting the A time, press the S1 key to set the B time, and the screen displays bxxx. At this time, press the S2 and S3 keys to modify the B time parameters. Short press the S2 and S3 keys to add or subtract 1, and long press to quickly add or subtract. 10. Press the S4 key to set the position of the decimal point. 4. After setting the B time, press the S1 key for the last time to exit the setting state and save all parameters.About The Product1. Multifunctional time relay module, a variety of working voltages are optional, DC 24V 2. The output terminal is isolated from the circuit by a relay, which can control low-voltage electrical appliances and 220V lines, with a control capacity of up to 10A. 3. There are as many as 27 working modes to meet various testing and automatic control applications, and the delay time is adjustable from 0.01 seconds to 999 minutes. 4. The trigger port can be triggered by a voltage signal, or it can be triggered by a button.Point Position1. Ax.xx decimal point is in the hundreds place, the time range is 0.01~9.99 seconds 2. Axx.x decimal point is in ten place, time range is 0.1~99.9 seconds 3. Axxx. The decimal point is in the one place, the time range is 1~999 seconds 4. Axxx has no decimal point, the time range is 1~999 minutes 5. Turn off the display: In the non-setting state, press the S4 key to turn off the display, and press it again to turn it on again.Specification: Package Weight One Package Weight 0.05kgs / 0.10lb One Package Size 10cm * 10cm * 3cm / 3.94inch * 3.94inch * 1.18inch Qty per Carton 200 Carton Weight 12.00kgs / 26.46lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 200 pcs = 76200 pcs 40HQ: 885 cartons * 200 pcs = 177000 pcs

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1. Size: 6.8CM x 2.1CM2. Main chip: NE5553. Working voltage: DC 12V/5VFeatures:1. The relay time delay and power supply is connected.Specific as follows: for 12V/5V power supply to the relay, relay not immediately and absorption, relay the output status to: normally open and public disconnect, normally closed and public conduction;Wait for delay 1-10 s (adjustable), relay and absorption, at this point, the relay outputs status to: normally open and public conduction, normally closed and public disconnected;As long as the module power continuously, this state will remain.2. The delay time is adjustable, (0-10 seconds)4. Increase the potentiometer to increase the delay time5. Increasing the capacitor C1 can increase the delay time6. With input power indicator light7. With relay pull-in indicator light8. It can control AC 220V/10A equipment. (Large control equipment 2000W)9. With relay freewheeling protection.10. Delay time formula: T=1.1RC. For example: capacitor 100uf resistor 100K T=1.1 x 100000 x 0.0001=11 secondsApplications1. The on-board equipment on the time delay, prevent excessive current when the car lighter burned on-board equipment.2. Need to have order to start the occasion, to prevent multiple devices at the same time starting current is too large burning appliances.Specification: Package Weight One Package Weight 0.03kgs / 0.06lb One Package Size 14cm * 7cm * 4cm / 5.51inch * 2.76inch * 1.57inch Qty per Carton 500 Carton Weight 12.00kgs / 26.46lb Carton Size 30cm * 50cm * 40cm / 11.81inch * 19.69inch * 15.75inch Loading Container 20GP: 444 cartons * 500 pcs = 222000 pcs 40HQ: 1031 cartons * 500 pcs = 515500 pcs

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1. This module complies with international safety standards, with isolation slots between the control area and the load area2. Using relays, with power and relay action indication, absorb bright, disconnect not bright3. When there is signal at the signal input, the common terminal and the normally open terminal will conduct4. It can be used as a microcontroller development board module, and can be used for home appliance control5. Control DC or AC signals, can control 220V AC loads6. There is a normally open and a normally closed contacts7. Blue KF301 terminals to connect the control line is more convenient8. Weight: about 12.4 g9. Size: about 4.3 x 2.7 cmAbout the high level and low level trigger mode description:1. High level triggering refers to the triggering mode where there is a voltage between the signal input and ground, which can be understood as a mode of triggering by short-circuiting the signal input and the positive pole of VCC2. Low level trigger refers to the trigger mode where the voltage between the signal input and the ground is OV, which can be understood as a mode where the signal input is triggered by a short circuit with the negative pole of GNDSpecification: Package Weight One Package Weight 0.02kgs / 0.04lb One Package Size 8cm * 5cm * 3cm / 3.15inch * 1.97inch * 1.18inch Qty per Carton 360 Carton Weight 6.50kgs / 14.33lb Carton Size 50cm * 32cm * 32cm / 19.69inch * 12.6inch * 12.6inch Loading Container 20GP: 520 cartons * 360 pcs = 187200 pcs 40HQ: 1209 cartons * 360 pcs = 435240 pcs

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1. Voltage: DC12-24V2. Frequency: 50/60HZ3. Installation method: indoor, ceiling installation4. HF system: 5.8GHz CW radio wave, ISM band5. Transmitting power: less than 10mW6. Power: 70W (DC 12V)7. Detection angle: 360 degrees8. Distance: about 1-10m (radius) adjustable9. Working delay: 10 seconds to 3 minutes10. Light control illumination: about 2-2000 LUX11. Power consumption: about 0.5W12. Description: 807 with power output, 807K without power output13. Applicable environment: corridors, toilets, living rooms, corridors, warehouses, garages, etc.14. Installation reminder: the induction switch has a transmission blind spot in the central area. If it is installed in a small indoor environment (such as bathroom, kitchen), try to install it on the side or in the corner, so that the induction area will be more effective on the side. otherwise, the vertical center activity may not be sensed15. Size: about 7.6x4.1x3.9cmSpecification: Package Weight One Package Weight 0.10kgs / 0.21lb One Package Size 10cm * 6cm * 5cm / 3.94inch * 2.36inch * 1.97inch Qty per Carton 356 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 356 pcs = 63012 pcs 40HQ: 412 cartons * 356 pcs = 146672 pcs

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1. Onboard BME68X sensor to measure temperature, humidity, barometric pressure and gas2. Support I2C interface communication, can set I2C address, support I2C bus cascading3. Support SPI interface communication, the default is I2C interface, SPI can be enabled through CS chip selection4. On-board level conversion circuit, compatible with 3.3V/5V working level5. Provide complete supporting information manuals (RaspberryPi/Pico/Arduino/ESP32 sample programs and user manuals, etc.)Parameter:1. Function: BME680 can detect atmospheric pressure, ambient temperature, relative humidity, VOC gas change detection (combined with Bosch software package, can calculate IAQ air quality coefficient), BME688 can detect atmospheric pressure, ambient temperature, relative humidity, VOC and VSC Gas change detection (combined with Boschs software package, which can calculate IAQ air quality coefficient and integrate AI function)2. Communication interface: I2C and SPI3. Temperature measurement range: -40~85 degrees Celsius4. Temperature measurement accuracy: BME680: +/-1.0 degrees Celsius (0~65 degrees Celsius), BME688: +/-0.5 degrees Celsius (0~65 degrees Celsius)5. Humidity measurement range: 0~100%RH6. Humidity measurement accuracy: +/-3%RH7. Air pressure measurement range: 300~1100 hPa8. Air pressure measurement accuracy: +/-0.6hPa (0~65 degrees Celsius)9. Gas measurement: BME680: VOC gas change detection, BME688: VOC and VSC gas change detection10. Product size: 27 × 20mmPacking list:-Environment sensor x 1-PH2.0 6PIN cable 20cm × 1Specification: Package Weight One Package Weight 0.08kgs / 0.19lb One Package Size 8cm * 5cm * 3cm / 3.15inch * 1.97inch * 1.18inch Qty per Carton 356 Carton Weight 30.00kgs / 66.14lb Carton Size 56cm * 35cm * 21cm / 22.05inch * 13.78inch * 8.27inch Loading Container 20GP: 647 cartons * 356 pcs = 230332 pcs 40HQ: 1504 cartons * 356 pcs = 535424 pcs

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1. With charging and discharging status indication: red light blinks when charging, red light stays on for full, and blue light blinks when discharging2. Built-in charging and discharging power MOS 3. Input voltage: 3.7-5.5V4. Charging current: 1A5. Output current: 1A6. Output voltage: 5V 7. BAT discharge termination voltage: 2.9V 8. Preset 4.2V charging voltage, accuracy about 1%9. Discharge efficiency: 85% (input 3.7V, output 5V/1A)10. 8uA standby current 11. Integrated charge management and discharge management12. Intelligent temperature control and over-temperature protection 13. Integrated output over-voltage/short circuit/heavy load/over-charging/over-discharging protection 14. Support trickle mode and zero voltage charging15. Available batteries: 18650 batteries, cell phone batteries, tablet batteries, MP3 batteries, such as 3.1V-4.2V polymer lithium batteries (Note: Parallel to increase the capacity, series is to increase the voltage, can only be used in parallel)16. Unusable batteries: dry cell batteries, storage batteries, 1.2V rechargeable batteries, nickel-metal hydride batteries, 3.2V lithium iron polymer lithium batteries, etc.17. Size: about 20 x 18 x 1mmSpecification: Package Weight One Package Weight 0.02kgs / 0.05lb One Package Size 6cm * 5cm * 2cm / 2.36inch * 1.97inch * 0.79inch Qty per Carton 800 Carton Weight 6.20kgs / 13.67lb Carton Size 50cm * 37cm * 32cm / 19.69inch * 14.57inch * 12.6inch Loading Container 20GP: 450 cartons * 800 pcs = 360000 pcs 40HQ: 1045 cartons * 800 pcs = 836000 pcs

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1. Size: 38mm (length) X22mm (width) X14mm (height)2. Weight: 8g3. Working voltage: 3.3--5.5V4. Clock chip: High-precision clock chip DS32315. Clock accuracy: Within 0-40 degree C, accuracy 2ppm, annual error about 1 minute6. With 2 calendar alarm clocks7. Programmable square wave output8. Real-time clock generates seconds, minutes, hours, week, date, month and year time, and provides leap year compensation valid to 2100 years9. The temperature sensor inside the chip has an accuracy of +/- 3 degree C10. Memory chip: AT24C32 (storage capacity 32K)11. IIC bus interface, high transmission speed 400KHz (when working voltage is 5V)12. Can cascade other IIC devices, 24C32 address can be modified by short circuit A0 / A1 / A2, the default address is 0x5713. With rechargeable battery LIR2032 to ensure that the clock still runs normally after the system is powered off14. Packing: Single anti-static packaging15. Wiring instructions (taking Arduino uno r3 as an example):SCL -- A5SDA -- A4VCC -- 5VGND -- GND16. DS3231 is a low-cost, high-precision I2C real-time clock (RTC) with integrated temperature-compensated crystal oscillator (TCXO) and crystal. The device contains a battery input, which can maintain accurate timing when the main power is disconnected. The integrated crystal oscillator improves the long-term accuracy of the device and reduces the number of components in the production line. The DS3231 offers commercial and industrial temperature ranges and is available in a 16-pin 300mil SO package.17. RTC saves seconds, minutes, hours, day, date, month and year information. Months less than 31 days will automatically adjust the end of the month, including corrections for leap years. The working format of the clock can be 24 hours or a 12-hour format with / AM / PM indication. Provide two configurable calendar alarms and a configurable square wave output. The address and data are transferred serially via the I2C bidirectional bus.Sophisticated, temperature-compensated voltage reference and comparator circuits are used to monitor VCC status, detect power failures, provide reset outputs, and automatically switch to backup power when necessary. In addition, the / RST monitor pin can be used as a manual input to generate a μP reset.18. In addition to high timing accuracy, the DS3231 also has some other functions that expand the additional functions and selection range of the system host. The device integrates a very accurate digital temperature sensor, which can be accessed through the I2C * interface (just like time). The accuracy of this temperature sensor is +/- 3 degree C. The on-chip control circuit can realize automatic power supply detection and manage the power supply switching between the main power supply and the backup power supply (that is, the low-voltage battery). If the main power supply is powered down, the device can continue to provide accurate timing and temperature without affecting performance. When the main power supply is re-energized or the voltage value returns to the allowable range, the on-chip reset function can be used to restart the system microprocessor.Specification: Package Weight One Package Weight 0.01kgs / 0.03lb One Package Size 8cm * 5cm * 5cm / 3.15inch * 1.97inch * 1.97inch Qty per Carton 500 Carton Weight 7.00kgs / 15.43lb Carton Size 30cm * 30cm * 38.9cm / 11.81inch * 11.81inch * 15.31inch Loading Container 20GP: 761 cartons * 500 pcs = 380500 pcs 40HQ: 1768 cartons * 500 pcs = 884000 pcs

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Main Features: 1. Brand new Ultrasonic Sensor HC-SR04 Distance Measuring Module 2. Features 4-mode connections: VCC / trig (T) / echo(R) / GND 3. With electric frequency output signal from 0V to 5V 4. Has high precision up to 3mm 5. 5VDC power supply 6. Detecting distance is from 2cm to 450cm Module Working Principle: 1. Adopt IO trigger through supplying at least 10us sequence of high level signal 2. The module automatically send eight 40khz square wave and automatically detect whether receive the returning pulse signal 3. If there is signal returning, through outputting high level and the time of high level continuing is the time of that from the ultrasonic transmitting to receivingSpecification: General Model HC-SR04 Types Ultrasonic Distance measuring sensor module Size 6.0*4.0*3.0 cm Weight 70 g Package Weight One Package Weight 0.08kgs / 0.17lb One Package Size 6cm * 4cm * 3cm / 2.36inch * 1.57inch * 1.18inch Qty per Carton 200 Carton Weight 16.10kgs / 35.49lb Carton Size 30cm * 25cm * 20cm / 11.81inch * 9.84inch * 7.87inch Loading Container 20GP: 1777 cartons * 200 pcs = 355400 pcs 40HQ: 4126 cartons * 200 pcs = 825200 pcs

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Main Features: 1. Working current: DC 3.3V / 13 - 26mA 2. Idle current: DC 3.3V / 10 - 13mA 3. Sleep current: < 80uA 4. Peak current: < 30mA 5. Working frequency: 13.56MHz 6. Supports card: Mifare1 S50, mifare1 S70, mifare Ultralight, mifare Pro, mifare Desfare 7. Application: Various electronic products and DIY projectsSpecification: General Model RFID-RC522 Material Plastic Size 12*8.0*2.0 cm Weight 80 g Package Weight One Package Weight 0.09kgs / 0.19lb One Package Size 12cm * 8cm * 2cm / 4.72inch * 3.15inch * 0.79inch Qty per Carton 200 Carton Weight 18.40kgs / 40.56lb Carton Size 48cm * 40cm * 20cm / 18.9inch * 15.75inch * 7.87inch Loading Container 20GP: 694 cartons * 200 pcs = 138800 pcs 40HQ: 1612 cartons * 200 pcs = 322400 pcs

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