Bestselling Products

1. Made of quality material, durable for long term use2. The main compartment for storing speaker, great for outdoor use3. Protect your speaker from daily scratch and damage4. Comes with a carabiner and detachable shoulder strap for easy carrying5. Applicable models: For JBL Flip 6/Flip 5/Flip 46. Size: 27 x 9 x 8cm7. Weight: 230g8. Package included:- Storage Bag x 1- Shoulder Strap x 1- Carabiner x 1(Not included the speaker)

Read more less

1. Suitable for JBL Clip 4 speaker protective cover, wear-resistant and dirt-resistant2. Bottom cushion airbag thickened design, high altitude fall without fear of breaking your audio.3. Stereo button design, comfortable touch, sensitive use4. Real mold, fit the body, reserved for product volume / charging holes, exquisite and beautiful5. Silicone material, with a portable strap design, easy to carry 6. Product size: 9.10cm x 5.30cm x 10.80cm7. Package weight: 0.117kg8. Packing list: protective case + 1 webbing strap + 1 hook and loop fastener strap + color box

Read more less

1. Light weight, easy to carry 2. Good anti-interference performance 3. Magnetic charging, easy to use 4. One-second adsorption, instant charging 5. Output short circuit protection, overvoltage and overload safety protection 6. Cable length: 1.5m

Read more less

Bluetooth:1. Chip: AC6901A2. Bluetooth connection distance: 10M3. Bluetooth version: V4.2+BR+EDR+BLE4. Transmission power: 4dBm5. Frequency: 2402MHz-2480MHz6. Supported formats: WMA/APE/MP3/FLACAudio:1. Speaker device: internal magnetic speaker2. Rated power: 5Wx43. Diaphragm parameters: air duct device4. Frequency response: 20HZ-20KHZ5. Signal-to-noise ratio: -80db6. Rated impedance: 4 ohms7. Total harmonic distortion: 1%8. Music file format: WMA/APE/MP3/FLAC9. Storage type: WMA/APE/MP3/FLAC10. Input audio source type: support Bluetooth/TF card/U disk/3.5mm11. Waterproof function: IPX4Power Supply:1. Type: 18650 aluminum polymer battery2. Rated voltage: 7.4V3. Battery capacity: 2000mA4. Battery life: 500 times5. Charging voltage/current: overcharge protection (8.40±0.05) V/over discharge protection (5.0±0.1) V6. Charging mode: DC 5V7. Charging time: about 4HPlay / Talk Time:1. Middle volume use time: about 5H2. Volume (Max) usage time: about 2.5H3. Standby time: 120H4. Volume segment: 0-151. Material: Metal+ABS+PVC+Silicone2. Size: 490×50×50mm3. Weight: bare machine: 731g, main body: 616g, base: 115gFeatures:1. Exquisite and compact appearance, with extremely narrow bezel design, delicate and elegant.2. 3D surround sound effect, bringing you the audio-visual effect like a home theater.3. Humanized design, can be split or spliced to meet your personal preferences.4. Compatible with a variety of devices, support U disk, TF card, 3.5mmAUX playback source, easy to use.5. Adopt 4 5W high-quality internal magnetic speakers + bilateral air duct devices, coupled with professional sound quality adjustment, presenting a clear and shocking music experience.

Read more less

1. Made of premium material, shockproof and durable2. Protector your device from damages caused by accidentally bumping3. Durable zipper convenience for easy opening and closing4. Comes with a small bag for storing the adapter5. Comes with a shoulder strap for easy carrying6. With comfortable handles, can be easily and conveniently carried on the go7. Material: Oxford cloth + EVA+ crystal super-soft velvet8. Suitable for JBL Boombox39. Package included: 1 x Protective Bag, 1 x Shoulder Strap, 1 x Small Bag for Charger (Others not Include)

Read more less

1. Made of premium material, shockproof and durable2. Protector your device from damages caused by accidentally bumping3. Durable zipper convenience for easy opening and closing4. Comes with a small bag for storing the adapter5. Comes with a shoulder strap for easy carrying6. With comfortable handles, can be easily and conveniently carried on the go7. Material: Oxford cloth + EVA8. Suitable for JBL Boombox39. Package included: 1 x Protective Bag, 1 x Shoulder Strap, 1 x Small Bag for Charger (Others not Include)

Read more less

1. It integrates the functions of ambient light/Bluetooth speaker/alarm clock/white noise sleep instrument to meet your various needs2. Wake you up with natural sound and light, multiple alarm clock settings on weekdays/weekends, snooze mode rings every 9 minutes3. 3 lullaby songs and 12 natural sounds to help you fall asleep4. RF433 remote control, 360-degree control without dead angle, convenient and practical5. Mobile phone smart APP control, simple and convenient operation6. LED independent digital display, time/temperature/date/Monday is clear at a glance7. Multiple modes of lighting colors are optional to create a romantic atmosphereParameter:1. Rated power: 10W2. Light source type: LED3. Light source color: RGBCW (red, green, blue, cool white and warm white)4. The maximum output power of the light source: 7.5W5. Control method: 433 bluetooth remote control (14 keys), APP control6. Support music playback types:- Bluetooth music- Built-in 15 white noise songs7. Symphony lighting effect: 9 kinds8. Indoor ring mirror temperature detection: support9. Lamp power supply mode: USB plug-in10. 433 bluetooth remote control power supply mode: No. 7 battery (battery not included)11. Standby current (uA): less than or equal to 3uA12. Supported languages: Simplified Chinese, English, French, Italian, Japanese, German, Spanish13. Product net weight: 318g14. Color box packaging size: 220mm x 215mm x 86mmPacking list:Ambient light x 1manual x 1USB power cable x 1remote control x 1

Read more less

1. The shell is made of hard-shell nylon material, which is strong, wear-resistant, shockproof and drop-resistant2. Open the mold of the real machine and fit the fuselage3. Internal anti-vibration particle design, good shock absorption effect, all-round protection for speakers4. Large-capacity design, can accommodate charging lines5. Widened handle design, more convenient to carry6. Product size: 25 x 13 cm7. Weight: about 280 grams8. Note: Only the storage bag will be sent for delivery, nothing else!

Read more less

Parameters:1. Wireless standard: 5.02. Transmission distance: 10m3. Output power: 10W x 24. Playing time: 4-6H5. Frequency range: 100Hz~10KHz6. Speaker: 66mmx2, 4 ohm 10W7. Input power: 5V 2A8. Maximum current consumption: 1A9. Battery type: 18650 Li-ion 3000mAh10. Audio signal input interface: standard 3.5mm headphone jack (stereo)Features:1. Support wireless connection2. Support U disk/TF card/AUX playback mode3. Function: memory function, hands-free function, frequency modulation function, 1+1 serial port function4. Support MP3/WAV/WMA/FLAC/APE music format decoding5. High-fidelity speakers are used to make the sound more natural and delicate, bringing you a different listening experience6. Adopt lPX6 waterproof design, no fear of rainy days, wanton singing

Read more less

Parameters: 1. Power: 60W 2. Bluetooth version: 5.0 3. Transmission distance: about 10m 4. Battery life: about 40H 5. Charging interface: Type-C 6. Charging time: about 6-10H 7. Standby time: about 90 days 8. Frequency response: 80Hz-20KHz 9. Battery capacity: 14400mAh 10. Size: 297x133x130mm 11. Weight: 1700g 12. Function: support Bluetooth / TF card / USB mode / power cord / audio cable / TWS interconnection Features: 1. The combination of three major speakers and bass double-diaphragm creates a three-dimensional shocking subwoofer, and the sound quality is thick and excellent. 2. Support two wireless interconnected synchronous playback to achieve surround sound and enjoy shocking sound effects. 3. Built-in noise-canceling microphone, high-definition hands-free calling, free your hands. 4. Built-in 14400mAh battery, low energy consumption, stable performance and long-lasting battery life. 5. Lanyard design, can be worn cross-body, on a backpack or bicycle, easy to use.

Read more less

Features:1. Bluetooth 5.0, compatible with all Bluetooth devices. Built-in microphone for easy answering/making calls.2. 2 in 1 bluetooth speaker and earphone. Tws headset supports Siri function.3. Provide built-in stereo and 360-degree stereo.4. FM radio allows you to listen to the radio freely.5. Simple button control, you can press the button to turn on/off, play/pause, switch modes, skip songs, adjust volume, etc.6. Support music files in mp3, wma, WAV, FLAC, ape formats.7. Support TF card or misro SD card, support USB2.0 hard disk.8. Support external MP3/MP4/computer audio input function (aux).9. TWS function, you can connect two speakers to sync with one mobile phone.10. Built-in large-capacity lithium battery, reusable, play music for a long time. Specification:1. Bluetooth version: V5.32. Transmission range: >10M3. Battery capacity: 500mAh4. Battery voltage: 3.7V5. Playing time: 1H6. Horn specification: Φ52mm7. Speaker power: 4Ω/5W8. Frequency response: 120Hz-18KHz9. Charging input: 5V/500 mA10. Size: 95mmx96mmx44mm11. Weight: 177gpacking list:1. Charging box speaker x 12. Charging cable x 13. Audio cable x 14. TWS earplugs x 1

Read more less

Features:1. Bluetooth 5.3, compatible with all Bluetooth devices. Built-in call microphone for easy answering/making calls.2. High power, built-in stereo and 360-degree stereo sound.3. TWS function, you can connect two speakers to synchronize with one mobile phone.4. Large-capacity lithium battery can play music repeatedly for a long time.5. Simple button control, you can press the button to turn on/off, play/pause, switch modes, skip songs, adjust volume, etc.6. Supports music files in mp3, wma, WAV, FLAC, and ape formats.7. Support TF card or Misro SD card, support USB2.0 hard disk.Specification:1. Bluetooth specification: V5.32. Transmission range: 10M3. Battery capacity: 500mAh4. Built-in voltage: 3.7V5. Playing time: about 1H (varies depending on audio content and volume)6. Speaker specifications: 52mm7. Speaker power: 4Ω/5W8. Frequency response: 120Hz-18KHz9. Audio noise ratio: greater than or equal to 85db10. Size: 110x76x82mm11. Weight: 266G12. Charging input: 5V/500mApacking list:1. Bluetooth speaker x 12. USB cable x 13. User manual x 1

Read more less

1. Bluetooth version: 5.02. Bluetooth distance: 10M3. Rated power: 5W4. Frequency response: 100hz-18khz5. Playing time: 4 hours6. Charge time: 2 hours7. Bluetooth frequency: 2.4-2.48GHZ8. Battery Specification 3.7v/400ma9. Weight: 200g10. Package included: A. 1 x Bluetooth speakerB. 1 x USB cableC. 1 x User manual11. Big power with small volume, redefines the super bass concept, the speaker comes equipped a downward passive radiator12. Featured super bass give you high-fidelity music enjoyment. fully equipped custom-made high-performance 3W neodymium driver, surprisingly loud with well-balanced sound13. Large acoustic cavity, crisp highs, deep bass.

Read more less

1. Bluetooth version: 5.02. Bluetooth distance: 10M3. Rated power: 5W4. Frequency response: 100hz-18khz5. Playing time: 4 hours6. Charge time: 2 hours7. Bluetooth frequency: 2.4-2.48GHZ8. Battery Specification 3.7v/400ma9. Weight: 200g10. Package included: A. 1 x Bluetooth speakerB. 1 x USB cableC. 1 x User manual11. Big power with small volume, redefines the super bass concept, the speaker comes equipped a downward passive radiator12. Featured super bass give you high-fidelity music enjoyment. fully equipped custom-made high-performance 3W neodymium driver, surprisingly loud with well-balanced sound13. Large acoustic cavity, crisp highs, deep bass.

Read more less

1. Interface: uSmart expansion connector 2. Cable length: 0.8m 3. Magnification: 50X-1000X 4. Pixel: 1MP 5. FOV: 60 degrees 6. LED lights: 8 LEDs, adjustable 7. Focal range: 25X/50X 8. Image quality: 720x1280, 480x720 9. Video quality: 720P@30fps, 480P@30fps 10. Video format: MP4 11. Zoom: 1.3X/2X/3X 12. Snap: short press for images, long press for videos 13. Focusing tube: 25X-50X 14. LED: wheel control 15. Main material: metal+electronic components 16. Dimensions: 33x110mm 17. Weight: 69g 18. Packing list: uSmart C01 x 1 Stand x 1 User manual x 1 Screwdriver x 1 Screws x 2 Micrometer calibration ruler x 1

Read more less

Next door wiretap the sound barrier-free multi-function filter: 1. Can be wood walls, walls, doors and windows, wall plate, such as voice. 2. The voice of the high-sensitivity detectors, so that you fully grasp the voices of the next room. 3. With headphones and audio output hole may be synchronized with the audio tape recorders in general, is to collect evidence Essential equipment. 4. Applies to business, reported the situation * check * card. The entire equipment including 1. The main equipment: volume is about the size of jelly, black, equipment upper charging jack, headphone jack, regulating switch stick, equipment acquisition at the bottom for the voice part (to be listening closely to the wall of the room, plate, doors, etc.). 2. High-definition stereo headphones. 3. Charging lines, packing box. Application method: After the device fully charged, plug in headphones, the sound equipment collected at the bottom close to the wall surface, open-conditioning equipment stick switch, turning stick until it heard a clear voice, the voice recorder can also use the headphone plug to connect equipment hole for a long period of recording.

Read more less

1) Easy to use and carry 2) With indicator light 3) Memory: 8GB 4) Support recording function 5) Ultra-portable storage device, Replaces floppies and CDs Windows compatible 6) Size: 67mm x 23mm x 8mm * User Manual: 1) Turn on: Please push the button to the Right, Then begin to record 2) Turn off: Please push the button to the Left, Then stop to record 3) Play: After recording, connect it to computer to play (format: WAV) 4) Male Jack: USB 2.0 (USB 2.0 interface, support win98 or above, needn't the driver, it can be used as a USB) 5) Note: If the voltage is too low, the pilot lamp will flash fast. When charge, the light flashes in normal. After charging, the pilot lamp flashes put out. It can be used about 8 hours after one charging. (2GB can storage more than 24 hours voice file) 6) When turn on after 5 second start record voice, after finish record need 5 second than turn off, because firm ware need some second working time.

Read more less

1. Raspberry Pi Camera, supports all revisions of the Pi2. 5 megapixel OV5647 sensor3. Adjustable focus distance4. Camera specifications- CCD size: 1/4inch- Aperture (F): 2.0- Focal Length: 6mm- Angle of View (diagonal): 60.6 degree- Sensor best resolution: 1080p5. Dimension: 32mm x 32mm

Read more less

specification1. Measurement range: 0~25% VOL2. Maximum overload: 30% oxygen3. Response time: <15 seconds4. Sensor type: electromagnetic O2 sensor5. Use ambient humidity: 15~90% RH6. Power: 3X1.5VAA battery Package Included1 x Oxgen gas detector (without battery)1 x manual

Read more less

1. Size: the cable is about 1.5 meters long2. Weight: about 60 grams3. Microphone type: condenser4. Applicable objects: mobile phones, computers, cameras, recording, meetings, etc.5. Packing list: microphone x2, metal clip x2, windproof sponge x26. Features: active pickup technology, which can filter noisy sounds in the background, capacitive technology, sensitive response, high reduction, drop resistance and durability, energy saving and low consumption

Read more less

1. Input voltage: DC4~12V2. Output voltage: DC2.5~8V3. Output power: 5W (do not use it with overload)4. Function description: suitable for common 5.0V USB fans on the market5. How to use: Plug the male head of the governor into a mobile phone charger, power bank, computer USB, etc., and then insert the fan plug into the female head of the governor to use6. Adjustment method: knob adjustment (clockwise increase, counterclockwise decrease)7. Features: strong wind and weak wind can be adjusted at will, fan stepless speed regulation, wide voltage input compatible with multi-speed power supply.8. The module is a speed-regulating fan module designed according to the principle of high-frequency switching power supply. The essence is to control the speed of the fan by adjusting the output voltage.9. Matters needing attention: When used to adjust the fan in two gears, please set the fan to the first gear, otherwise the speed may not be adjusted.10. Size: 50x18mm

Read more less

1. Resolution: 640*480. 2. Sensor Size: 1/5 inch. 3. Waterproof wire endoscope, waterproof level: IP67. 4. Use optoelectronic technology to investigate hard-to-reach area. 5. It helps you to diagnose broken part, weld point and machine equipment to save time and increase productivity. 6. It has built-in 8 LED lights (with brightness control) on camera head to illuminate the inspection area. 7. Support computer & mobile phone: Android and windows operation system.

Read more less

1. This USB 3.2 Gen1 to Gigabit Ethernet wired Internet module incorporates Realtek original high performance controller RTL8153, with features including multi systems compatibility, driver-free, plug-and-play, supports systems like Win7/8/8.1/10, Mac, Linux, Android, and so on. 2. Easily providing wired Gigabit Ethernet connection for devices which has no Ethernet port or broken NIC, fast data rate, low latency, stable performance, smooth experience for gaming or HD movies. Specifications: 1. Controller: RTL8153 2. ETH port: RJ45 Gigabit Ethernet 3. USB: USB 3.2 Gen1 (data rate will be downgraded while connecting with a USB 2.0 port) 4. Network standard: 10/100/1000Mbps 5. System support: Win7/8/8.1/10, Mac, Linux, Android 6. Cable length: About 15cm (measured manually, for reference ONLY) 7. Status indicator: The green light keeps on, the yellow light keeps blinking Package list: 1. USB 3.2 Gen1 TO Gigabit ETH x 1 2. USB Type-A extension cable x 1

Read more less

1. DSP smart chip, more efficient processing of human voice, clearer and more stable sound quality2. Compatible with mobile phones, desktop computers, tablets, laptops, Android, iPhone3. Function: male to female voice/female to male voice/magic voice/children voice/electronic voice, one-click application to easily stir up the atmosphere4. It can be connected to a computer or mobile phone for music accompaniment during the live broadcast to make the live broadcast more vivid5. Intelligent dodge, suitable for a variety of occasions6. Input voltage: 5V7. Battery capacity: 500 mA8. Dimensions: 10 x 7.5 x 3 cmpacking list:Sound card x 1Accompaniment cord x 1Live line x 1Charging cable x 1

Read more less

1. Material: ABS2. Lens: F/8 28mm3. Shutter: 1/100s4. Application: 135 film5. Film speed: ISO 2006. Format: 135 negative film7. Number of sheets: 8 sheets/roll8. With underwater waterproof shell, can record wonderful moments underwater9. The ideal shooting distance outdoors is five meters10. Since it is a wide-angle lens, keep your fingers away from the lens when shooting11. When shooting in the sun, it is better to shoot with the sun behind your back12. Dimensions: 10.5x7.3x4 cm13. Weight: about 180 gramsFilm installation method:1. Open the waterproof case2. Turn the back cover switch to open the back cover3. Lift the film spool with your fingers4. The notch side of the film is up, and the upper and lower holes are stuck on the lens shaft and the rubber shaft5. Close the back cover and turn the gear to the right until it stops.6. It can be used normally (no battery required)The package contains:- Camera x 1- Waterproof case x 1- Film x 1- Manual x 1

Read more less

About The ProductOverview 1. This is an industrial USB to RS485 converter with original FT232RL and SP485EEN inside. It features embedded protection circuits such as lightningproof, resettable fuse, ESD protection, and TVS diode, etc. It is pretty small in size. 2. The USB TO RS485 is very easy to use, allows automatic transceiving. Due to its fast communication, stability, reliability, and safety, it is an ideal choice for industrial control equipments and/or applications with high communication requirement. Features 1. USB to RS485 communication 2. Adopt original FT232RL and SP485EEN, fast communicating, stable and reliable, better compatibility 3. Onboard TVS (Transient Voltage Suppressor), effectively suppress surge voltage and transient spike voltage in the circuit, lightningproof & anti-electrostatic 4. Onboard self-recovery fuse and protection diodes, ensures the current/voltage stable outputs, provides over-current/over-voltage proof, improves shock resistance 5. 3 LEDs for indicating the power and transceiver status Specifications 1. Product type: Industrial converter 2. Baudrate: 300-921600bps 3. Host port: USB 4. Device port: RS485 5. USB: - Operating voltage: 5V - Connector: USB-A - Protection: 200mA self-recovery fuse, ESD protection - Transmission distance: about 5m 6. RS485: - Connector: screw terminal - Pins: A+, B-, GND - Direction control: hardware automatic control - Protection: 600W lightningproof and surge-suppress, 15KV ESD protection (onboard 120R balancing resistor) - Transmission distance: about 1200m (low rate) - Transmission mode: point-to-multipoints (up to 32 nodes, it is recommended to use repeaters for 16 nodes or more) 7. LED indicators: - PWR: red power indicator, light up when there is USB connection and voltage is detected - TXD: red TX indicator, light up when the USB port sends data - RXD: red RX indicator, light up when the device ports send data back 8. Operating environment: - Temperature: -15 ~ 70 degree - Humidity: 5%RH ~ 95%RH 9. Operating system: Mac, Linux, Android, WinCE, Windows 10 / 8.1 / 8 / 7 / XPPackage List1. USB TO RS485 x 1 2. USB-A male to female cable x 1 3. Screwdriver x 1

Read more less

1. Purpose: Video converter2. Support system: No system requirements3. Input wired signal, output video signal4. AV input and output ports, suitable for all TVs5. With remote shutdown, timing shutdown, 10 minutes no signal automatic shutdown function6. Wide voltage range (110-240V) switching power supply has high efficiency, low heat generation, safety and reliability7. The operation is simple, convenient, and the display is clear, and the volume and channel operations are displayed in the tuner window8. The receiving signal is stable and reliable, and can receive and store 251 channels of TV programs, adapting to the needs of future cable TV networks9. Operation tips: Connect the TV AV port, enter the AV mode, turn on the TV, directly press the remote control SEARCH to quickly search for channels, or press the MENU button, right to the default column, press the down arrow to automatically search, press the right button to Automatically search channel sound in settings10. Unit weight: 0.5kg

Read more less

1. Type-C, DC5V input port, current is 1A (max) 2. The red light of the two-color indicator light is always on when charging, and the blue light of the two-color indicator light is always on when the battery is fully charged. 3. Short press the start button, the fan and spray will start at the same time (the first fan is activated by default), short press again to adjust the fan position, press once to increase the gear, when it reaches the third gear, press the button again to turn off the fan and spray .Three-color indicator light shows the gear position, the first gear is red, the second gear is green, and the third gear is blue; the pure white indicator is the spray working indicator, and the pure white indicator is on when the spray is started. 4. In the case of starting, short press the spray button to turn off the spray. The pure white indicator light goes out, short press the spray button again, the spray is turned on and the pure white indicator light is on. (a. When the fan is not turned on, the spray cannot be turned on. B. Turn off the fan and the spray will be turned off). 5. When the sensor board detects that there is no water, the spray stops working. 6. Short press the light button, RGB lights up, long press the light button to fix the color, short press again to turn off RGB. 7. When there is no external power supply, when the battery is low, the charging indicator will flash red quickly until the fan stops working and the red light goes out. 8. Parameters: Input voltage: DC5V Charging current: 1A Working current: 0.2A-1.6A Working power: 1W-8 W Standby current: 88uA Motor speed: 1700rpm, 2185rpm, 2675rpm Wind speed: 1.57m/s~2.71m/s Water usage time: 12h Battery life: 1.5h~5h Fan current consumption: 0.24A, 0.48A, 0.9A

Read more less

Specification1. Movable part: movable coil type 2. Pointer materials: Nickel Silver Strips 3. Pointer color: Black 4. Direction of pointer swing: From left to right 5. Pointer length: 30+/-1mm from the center axis to the end of the needle 6. Pointer width: 0.45 +/- 0.05mm 7. Direction of use: Vertical 8. Operating temperature limit: -10 degree C to + 60 degree C RH 35 to 85% 9. Storage temperature limit: -20 degree C to + 60 degree C RH 35 to 85% 10. Solder condition: Put the terminal about 3 mm into a tin plate with a temperature of 230 degree C. The placement time is 3.5 seconds. After this test, 7-14 items remain normal. 11. Solder temperature: hold the solder gun at 350a?? for 3.5 seconds, and the front end of the terminal is about 3mm in contact with the solder gun. After this test, items 7-14 remain normal. 12. Anti-static: use dry nylon cloth to test the transparent cover surface in the same direction for three times. Mark the pointer difference below 1/3 of the scale length, and return to zero after three seconds. 13. Light bulb specification: DC12V 12W Note: Do not put the meter in direct sunlight, and store the meter in the packing box to prevent foreign matter from entering the meterElectrical Performance1. Standard test conditions: temperature 20 degree C, humidity 70%, no difference in test results, it can also be tested under normal temperature and humidity. 2. Electric influenza degree: Pointer sensitivity 1mA+/- 5% from zero scale to uppper scale (full scale position) 3. Internal impedance: 50ohm+/- 5% 4. Insulation impedance: above 500V DC plus 50M OHm for the charging circuit of the meter outer box. Insulation impedance between the casing of the meter and the charging circuit is tested at 500V DC voltage. 5. Zero position: the meter is in a standard position. The place where the front end of the pointer is integrated with the zero scale center is the reference. The permissible error of the overlap between the pointer and the zero scale is +/-1mm. 6. Equalization: Permissible error range ??±1mm when the standard position of the meter is tilted 90 degrees before and after use. 7. Stick pointer: instantly add three times the full scale current over current, slowly reduce to 1/2 of the electric flu reading, then the pointer will return to 1/3 of the scale. 8. Friction: The error range of indicating point ??±1mm when the electric current is added to the meter and slowly increased or decreased to a certain value. 9. Braking: Instantly add 2/3 of the current of the dial plate, within one second from the beginning to the position indicated by the pointer.Special Test1. Over load test: input ten times the full scale current every five seconds, repeat this action for nine times. Each time is 0.5 seconds, 7 to 14 items remain normal after this test. 2. Vibration test: After the meter is packaged, it is shaken up and down by 4mm every 1,000 times per minute on the vibration plate, 10 minutes in each direction. After this test, 7-14 items remain normal. 3. Impact test: The meter fell from a height of 30cm to a 3cm thick board after being packaged, and the test was conducted in three directions,X.Y.Z, 7-14 items remained normal after this test. 4. Reliability test: Electrofluence limit remains within standard after 100,000 correction point current inputs. 5. Environmental impact test: Temperature 50a??, humidity 85%, lasting 100 hours, after this test 7-14 items remain normal. 6. Terminal tension test: the terminal must bear 1 kg tension, lasting for 60 seconds.

Read more less

1. Color screen display, humanized interface 2. Bilingual options: Chinese/English 3. Three types of alarms: sound/light/vibration 4. Data recording and viewing function, continuous recording of 120,000 pieces of data 5. Using high-quality gas sensor, safe and reliable, accurate measurement, stable performance 6. It has excellent sensitivity and repeatability, easy to use and maintain, and meets the requirements for high reliability of equipment in industrial field safety monitoring 7. The shell is made of high-strength engineering plastics and composite non-slip rubber, dust-proof and explosion-proof, high strength, and smooth hand feeling 8. Measuring range: 0-30%VOL 9. Resolution: 0.1 10. Response time (90%): less than 30 seconds 11. Working voltage: DC 3.7V (lithium battery capacity 1800mAh) 12. Battery model: LP103450-1800mAh 13. Charging time: 6-8h 14. Standby time: more than 8 hours (with slight changes in working status) 15. Size: 71x153x49mm 16. Weight: about 215.4g

Read more less

1. Menu operation and color screen high-definition display. 2. It can quickly, non-destructively and accurately measure the thickness of the non-magnetic coating on the magnetic metal substrate and the thickness of the non-metal coating on the non-magnetic metal substrate. At the same time, it can automatically identify the magnetic metal substrate and the non-magnetic metal substrate. 3. Two measurement methods: single measurement and continuous measurement. 4. Three calibration modes: basic calibration, offset calibration, and zero calibration. Metric/English units and storage function. 5. Screen rotation, charging protection, multi-interface display, screen brightness selection. 6. Widely used in manufacturing, metal processing, chemical, commodity inspection and other testing fields. 7. Support USB and battery power supply. 8. Measuring range: 0-1500um/0-1.5mm/0-59mil 9. Lower limit diameter of magnetic metal substrate: 12mm 10. Lower limit thickness of magnetic metal substrate: 0.5mm 11. The lower limit radius of curvature of the magnetic convex substrate: 2mm 12. The lower limit radius of curvature of the magnetic concave substrate: 11mm 13. Lower limit diameter of non-magnetic metal substrate: 50mm 14. Lower limit thickness of non-magnetic metal substrate: 0.5mm 15. Battery: 3 x 1.2V Ni-MH battery or 5V 1A power adapter 16. Weight: 132g 17. Dimensions: 150 x 65 x 30mm

Read more less

1. Material: plastic2. High efficiency particulate air filter3. Easy to install and replace4. Changing the filter can increase the service life of the vacuum cleaner5. Hypa filter is good at reducing the smell of pets, tobacco, cooking smoke, etc.6. Effectively help improve cleaning efficiency and save cleaning time7. Convenient installation and disassembly, highly matched with the equipment8. Size: about 13.5x2.5 cm/13.5x3 cm9. Weight: about 155gPacking list:- Filter element x 1- Filter x 1

Read more less

1. Using PT2399 reverberation chip, with NE5532 op amp, it can mix human voice and music, which can realize independent adjustment of music volume, microphone volume and reverberation time to achieve K song effect2. It can be used for DC 12-24V power supply or AC 5-12V, which can be directly used for various digital power amplifier boards. If the power supply voltage is the same, the power supply can be shared3. Input voltage: DC12-24V4. Reverberation chip: PT239995. Microphone input: 26. Knob spacing: 24MM Microphone spacing: 17.6MM7. Output channel: 2 channels8. Frequency response range: 25HZ-17KHZ9. Appearance size: 117 x 53MM10. Weight: 75 grams11. Note: Only adjustable loop microphones can be used, other microphones such as condenser microphones, pole microphones, and headphone microphones are not available.

Read more less

1. Material: plastic2. Use environment: home3. Applicable area: 101-150 square meters4. Suitable for Dyson V11/SV145. When the sweeper is working, filter the dust6. Stable cleaning performance and long service life7. Effectively help improve cleaning efficiency and save cleaning time8. Convenient installation and disassembly, highly matched with the equipment9. Weight: 125g10. Size: 13x9x6.8 cm

Read more less

1. Material: plastic2. Use environment: home3. Applicable area: 101-150 square meters4. Suitable for Dyson TP04 / TP05 / HP04 / HP05 / DP045. Rugged and durable, long service life6. Isolate dust and harmful gases, and clean the air7. Effectively help improve cleaning efficiency and save cleaning time8. Convenient installation and disassembly, highly matched with the equipment9. Weight: 980g of filter screen, 850g of activated carbon screen10. Size: filter screen 18x18 cm, activated carbon screen 13x13 cm

Read more less

1. Material: plastic2. Suitable for Mijia STYJ02YM / MVVC01-JG3. Use environment: home4. Function: fixed mop5. Applicable area: 150 square meters or more6. Easy to bond, durable7. Dimensions: 300x155 mm8. Weight: 150g/piece

Read more less

1. Bluetooth version: 5.1 2. Charging interface: Type-C 3. Effective distance: about 10 meters 4. Battery capacity: 3.6V 2500mah 5. Large-caliber professional pickups, full and undistorted vocals 6. One key to eliminate the original song, easy to use 7. Sound card-level DSP chip noise reduction, no noise 8. Size: 96x96x226mm

Read more less

Features1. Plug & play: Easy to use, switch on and plug in the receiver to connect automatically. The cell phone microphone has a mini body, it is an easy clip-on mic and enhances personal privacy protection, portable storage bag allows you to take it anywhere. This clip-on mic is a tailored gift for whom loves live stream, vlogging, recording video, etc. 2. Compatible Android devices: Wireless lapel microphone compatible for Android Phone/ Tablet with USB Type-C port, suck as suitable for Samsung S21 / S20, Note 21/20, LG G8 / G7, OnePlus 8, Samsung Tab S7 / S6 / S6 Plus, A7 etc. and laptop with USB-C port (Support OTG function). 3. Performance wireless system: The transmission mic built in rechargeable battery. 20M/65Ft Barrier-free connection, 360 degree omnidirectional sound reception, recording every detail. 4. Real-time auto-sync technology: The wireless mic supports multi-channel real-time mixing, it can synchronize the background music for phone and human voice in real time, reduce the video post-editing, offers professional full band audio. 5. Support phone charging: The receiver with input charging interface, support phone chargingSpecificationsPerformance parameters: 1. Chip: Professional 2.4GHz wireless microphone chip 2. Microphone Sensitivity: -38dbm 3. Normal mode recording sample rate: 44.1K 4. Noise reduction mode recording sampling rate: 32K 5. Transmit power(MAX): 10dbm 6. Indoor barrier-free straight distance: 15-20 meters 7. Outdoor barrier-free straight distance: About 10 meters 8. Charging port: Type-C 9. Material: ABS The working current parameters of the transmitter (TX): 1. Battery capacity: 70mAh (LIR1254) 2. Power off power consumption: 2.6uA 3. Power consumption: 4mA (Power on no pairing with the receiver ) 4. Power consumption: 10mA (Power on and pairing with the receiver) 5. Power consumption: 6mA(Entering silent mode ) 6. Charging current: 70mA The working current parameters of the transmitter (RX): - Power consumption: 16mA(Plug-in phone)

Read more less

1. Camera light source: 9 adjustable LEDS2. Working temperature: 32-113 degrees Fahrenheit (0-45 degrees Celsius)3. Waterproof: IP68 (only for lens)4. Battery capacity: 2600mA5. Front camera focal length: 5cm-500cm6. Focal length of side camera: 3cm-500cm7. Front camera resolution: 1960*10808. Side camera resolution: 1960*10809. Main control chip pixel: 5 million pixels10.Sensor pixels: 2 million pixels11. Viewing angle: 70 degrees12. Support system: Android, IOS13. Photo format: MJPEG14. Video format: MP4

Read more less

1. C2 Portable pack designed for Quest2 and BOBOVR M2 features high compatibility and large storage space. As long as the headband is less than 15cm (6in) high, it can be put in. Compatible with official Elite headbands and various types of straps (DAS wristbands are not currently supported)2. It adopts a simple design language, which conforms to the original style to the greatest extent, and gives consideration to appearance design and practical functions.3. The surface of the phone case is made of beautiful textured fabric material.4. EVA 6.5 mm thick, pebble shaped, resistant to drop, impact, dust and splash, better protect your beloved Quest25. There are multiple areas inside the case to accommodate the Quest2 host and controller with a big head strap and a receptable cable/charging bag.6.C2 carrying case external dimension :380 MM X 242 MM X 160 MM

Read more less

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 power

Read more less

1. One key to start recording, easy to use2. Intelligent voice control recording, if there is sound (more than 30 decibels), it will record, and if there is no sound (or less than 30 decibels), it will be listened.3. You can add a password to the recording file, encrypt and protect your data security4. With its own delete function, unnecessary files can be deleted directly without computer operation5. Automatically save the file when the battery is low, and then shut down6. Small and portable, mirror design7. Charging time: about 10 hours8. Recording time: 25 consecutive days9. Built-in 4600mAh polymer lithium battery10. Recording format: WAV11. Music format: MP3, WMA, WAV12. Sampling rate: 48KHz13. Number of bits: 192Kbps14. Product size: 65 x 25 x 26mm

Read more less

1. DVB-T2/C receiver is a HD digital set-top box, support H.264 MPEG4 decoding and dolby AC3, fully compliant with the DVB-T/T2 and DVB C standard 2. Support 1080P full HD output, to bring you a clearer movie viewing experience 3. Interface: USB2.0, HD out, audio R, audio L, video, DC power port 4. Product color: black 5. Product size: 12 x 6.4 x 2.7cm 6. Remote controller power supply: AAA battery(not included)

Read more less

1. Low temperature design, can paint on the skin, not hot2. Wireless operation, easy to use3. Intelligent voice broadcast, simpler prompt operation and easier drawing4. Built-in 700 mAh lithium battery, 45-60 minutes long battery life5. PCL environmentally friendly material, 1.75 mm in diameter6. Voltage: 5V7. Current: 0.5A8. Power (max): 2.5W9. Product size: 155 x 39 x 35mm

Read more less

Features1. This is a RS485 device data acquisitor / IoT gateway designed for industrial environment. 2. It combines multi functions in one, including serial server, Modbus gateway, MQTT gateway, RS485 to JSON, etc. 3. The module features RS485 and Ethernet ports, uses screw terminals for power input, supports 9~24V wide range power supply. 4. Rail-mount flame-retardant case design, small in size, easy to install. 5. It is suitable for applications like data acquisition, IoT gateway, safety & security IoT, and intelligent instrument monitoring...Specifications1. Communication interface: RS485, screw terminal, supports 32x slave devices 2. Power supply: 9 ~ 24V DC, screw terminal 3. Dimensions (L x W x H): 87 x 36 x 59 mm 4. Ethernet: 10 / 100M auto-negotiation RJ45 connector, 2 KV surge protection 5. Serial port: RS485 ?? 1: RXD, TXD, GND 6. Baudrate: 300 ~ 115200 bps 7. Parity bit: None, odd, even, mark, space 8. Data bit: 5 ~ 9 bits 9. Flow control: N/A 10. Protocol: ETHERNET, IP, TCP, UDP, HTTP, ARP, ICMP, DHCP, DNS 11. Configuration: Host, web browser, device management functions library 12. Communication method: TCP/IP direct communication, VCOM 13. Operating mode: TCP server, TCP client (coexisting with TCP server), UDP, UDP multicast 14. Operating temperature: -40 degree C ~ 85 degree C 15. Storage temperature: -45 degree C ~ 165degree C 16. Humidity range: 5% ~ 95% relative humidity

Read more less

1. Applicable area: less than 10 square meters2. Applicable model: suitable for Ecovacs T9 AIVI/T9 AIVI+3. The bristles are moderately soft and hard, and the cleaning force is strong4. Hypa filter, good filterability5. The rag is not easy to shed hair and easy to clean6. Rolling brush real machine mold opening, high adaptability7. Weight: side brush 11g/pair, filter screen 29g/piece, rag 10g/piece, double roller brush 68g/piece8. Set list: side brush x 3+ rag x 5 + filter screen x 3+ double roller brush x 1

Read more less

1. This printing paper is made of high-quality wood pulp, which is safe and durable to use, and can keep the paper from fading for a long time. 2. The paper is ordinary white paper, no adhesive, direct thermal printing, saving time and effort. 3. The receipt paper is waterproof, oil-proof, scratch-resistant, smooth, thin and can be easily installed in the device. 4. Moreover, the receipt paper is printed clearly and conveniently, and can be used for a long time without cracking. 5. Easy to install and easy to carry. 6. When using the thermal paper in the camera, you can easily fill the paper, and 10 rolls of paper are enough to meet long-term needs.

Read more less

1. The microphone clip on the stand can be rotated freely at multiple angles to adjust the pickup direction2. The left and right adjustment distance is 80mm, and the length of the bracket is 25cm3. Applicable scenarios: corporate meetings/business speeches/educational lectures/multi-platform live broadcasts4. Material: aluminum alloy + ABS5. Weight: 190g for two heads, 280g for four heads

Read more less