DIY Parts & Components

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 0.08kgs / 0.19lb 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. Audio channel: 2.1 channel2. Bluetooth version: 5.03. Audio input: Bluetooth+AUX+U disk+USB sound card4. Audio output: Left and right channel + subwoofer + 3.5mm interface stereo output5. Volume adjustment: Encoder knob adjustment, smooth feel6. Frequency range: 20Hz-30KHz7. Signal to noise ratio: 92dB8. Output power: 50W x 2 (left and right channels) + 100W (subwoofer)9. Left and right channel speakers: 10-100W /4-8 ohm10. Subwoofer: 20-200W /4-8 ohm11. Protection mechanism: Static electricity, overcurrent, overheating and short circuit protection12. Adapter power supply: Above DC 5-26V/10A13. Function: Support Sinilink APP control14. Size: About 9.5 x 8.8 x 2.5cm15. Weight: About 156gPacking list:1. Upper cover x 12. Bare board x 13. Lower cover x 14. Knob cap x 65. M2x4+3 copper pillar x 46. M2x3 screw x 87. M2x18 copper pillar x 48. Heat sink x 19. Thermally conductive silicone paste x 1Specification: Package Weight One Package Weight 0.20kgs / 0.44lb One Package Size 15cm * 12cm * 3cm / 5.91inch * 4.72inch * 1.18inch Qty per Carton 100 Carton Weight 17.00kgs / 37.48lb Carton Size 30cm * 50cm * 56.7cm / 11.81inch * 19.69inch * 22.32inch Loading Container 20GP: 313 cartons * 100 pcs = 31300 pcs 40HQ: 727 cartons * 100 pcs = 72700 pcs

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1. Audio source input: Bluetooth+AUX+U disk+USB sound card2. Adapter power supply: Above DC5-27V/2A3. Output power: 50Wx24. Adapted speaker: 10-200W, 4/8 ohm5. Number of channels: Left and right dual channels (stereo)6. Bluetooth version: 5.07. Transmission distance: More than 15 meters, no obstruction8. Chip: TPA3116D2 (anti-interference efficient class D power amplifier)9. Output mode: LC filter output, high-definition sound quality10. Volume adjustment: Encoder volume adjustment, smooth feel, one-key switch11. Heat dissipation method: Pure aluminum heat sink + shell heat dissipation, large heat dissipation area, ensuring high power and high performance operation12. Protection mechanism: Anti-static, anti-reverse power supply, short circuit, overheating, overvoltage, undervoltage, DC protection13. Power supply voltage:- 12V: 8 ohm/10Wx2, 4 ohm/20Wx2- 18V: 8 ohms/20Wx2, 4 ohms/40Wx2- 21V: 8 ohms/30Wx2, 4 ohms/50Wx214. Size: About 6x6x1.6 cm15. Weight: About 94gSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 12cm * 2cm / 5.91inch * 4.72inch * 0.79inch Qty per Carton 100 Carton Weight 11.00kgs / 24.25lb Carton Size 52cm * 42cm * 32cm / 20.47inch * 16.54inch * 12.6inch Loading Container 20GP: 381 cartons * 100 pcs = 38100 pcs 40HQ: 885 cartons * 100 pcs = 88500 pcs

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1. Audio input: Bluetooth + AUX + U disk + computer USB sound card (plug and play)2. Adapter power supply: DC 9-24V (high voltage is recommended for high power)3. Output power: 50Wx24. Adapted speaker: 10-100W, 4/8 ohm5. 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: Overvoltage, undervoltage, overheating, DC detection, short circuit protection10. Power supply voltage:- 12V: 8 ohms/12W+12W, 4 ohms/20W+20W- 15V: 8 ohms/18W+18W, 4 ohms/30W+30W- 19V: 8 ohms/32W+32W, 4 ohms/40W+40W- 24V: 8 ohms/38W+38W, 4 ohms/50W+50W11. Size: About 6x6x1.8 cm12. Weight: About 68g13. 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 200 Carton Weight 13.00kgs / 28.66lb Carton Size 30cm * 50cm * 43.3cm / 11.81inch * 19.69inch * 17.05inch Loading Container 20GP: 410 cartons * 200 pcs = 82000 pcs 40HQ: 953 cartons * 200 pcs = 190600 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: 100Wx24. Adapted speakers: 20-200W, 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/20W+20W, 4 ohms/40W+40W- 15V: 8 ohms/35W+35W, 4 ohms/60W+60W- 19V: 8 ohms/55W+55W, 4 ohms/80W+80W- 24V: 8 ohms/70W+70W, 4 ohms/100W+100W11. Size: About 6x6x2.9 cm12. Weight: About 66g13. 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 0.12kgs / 0.25lb One Package Size 15cm * 12cm * 3.5cm / 5.91inch * 4.72inch * 1.38inch Qty per Carton 100 Carton Weight 12.00kgs / 26.46lb Carton Size 30cm * 50cm * 40cm / 11.81inch * 19.69inch * 15.75inch Loading Container 20GP: 444 cartons * 100 pcs = 44400 pcs 40HQ: 1031 cartons * 100 pcs = 103100 pcs

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1. All copper plug, the contact point is not easy to heat2. The grid terminal is convenient for wiring, and the adjacent wires are not easy to be short-circuited3. Chip: TPA3116D2 (with AM interference function)4. Filter: LC filter (the sound is more round and clear after filtering)5. Adapter power supply: 5-27V (high voltage recommended for high power)6. Output power: 100Wx27. Adapter speaker: 50-300W, 4-8 ohms8. Number of channels: left and right dual channel (stereo)9. Bluetooth version: 5.010. Bluetooth transmission distance: about 15 meters (unblocked)11. Protection mechanism: overvoltage, undervoltage, overheating, DC detection, short circuit protection12. Power supply voltage:-12V: 8 ohm speaker/24W (left channel) +24W (right channel), 4 ohm speaker/40W+40W-15V: 8 ohms/36W+36W, 4 ohms/greater than 60W+60W-19V: 8 ohms/64W+64W, 4 ohms/greater than 92W+92W-24V: 8 ohms/76W+76W, 4 ohms/greater than 110W+110W13. Size: about 8.4x5.2x2.4cm14. Weight: about 130g15. Tips: only when the audio input is sufficient and the power supply/current is sufficient, there will be enough output power. If the power supply voltage is higher, the relative power will be higher. Speakers with different impedances will have different output powers. In the case of sufficient voltage and current, the larger the ohmic number of the speaker, the smaller the relative sound powerSpecification: Package Weight One Package Weight 0.14kgs / 0.32lb One Package Size 10cm * 6cm * 4cm / 3.94inch * 2.36inch * 1.57inch Qty per Carton 194 Carton Weight 30.00kgs / 66.14lb Carton Size 57cm * 34cm * 23cm / 22.44inch * 13.39inch * 9.06inch Loading Container 20GP: 598 cartons * 194 pcs = 116012 pcs 40HQ: 1388 cartons * 194 pcs = 269272 pcs

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1. Stereo audio, wide frequency response, high efficiency, low distortion and low noise, good sound effect2. There is a volume adjuster, easy to adjust the sound3. With power reverse connection protection, short circuit protection and overheat protection4. Wide supply voltage and two input modes, higher efficiency5. Material: PCB circuit board6. Power supply voltage: DC 5-24V7. Bluetooth version: 5.08. Transmission distance: about 15 meters (visible and unobstructed)9. Number of channels: two channels (stereo)10. Output power: 20Wx2 12V 4 ohms, 30Wx2 16V 4 ohms, 30Wx2 21V 8 ohms, 40Wx2 24V 8 ohms11. Adapter speaker (40-200W): 4 ohms (5-16V power supply), 8 ohms (5-24V power supply)12. Module protection mechanism: power reverse connection/short circuit/self-recovery overheating protection13. Size: about 5.08x3.8x1.815cmPrecautions:1. Keep a safe distance from the router to avoid wifi interference2. It is recommended to use 5-24V DC power supply voltage, higher than 26V chip will burn3. The power supply should be within 16V when connected to a 4-ohm speaker, and within 24V when connected to an 8-ohm speaker4. The power supply current is recommended to be more than 2A5. The speaker cable should not be too long, it is recommended to be within 1m6. Pay attention to electrostatic protection. Before touching the power amplifier board, you need to release the static electricity on your hands to avoid the breakdown of the chip by static electricity. The Bluetooth chip is more sensitive to static electricity.7. It is recommended that the rated power of the speaker is 40W and above to avoid the speaker being overheated and burnedSpecification: Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 8cm * 6cm * 2.5cm / 3.15inch * 2.36inch * 0.98inch Qty per Carton 500 Carton Weight 27.00kgs / 59.52lb Carton Size 50cm * 50cm * 54cm / 19.69inch * 19.69inch * 21.26inch Loading Container 20GP: 197 cartons * 500 pcs = 98500 pcs 40HQ: 458 cartons * 500 pcs = 229000 pcs

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1. Stereo audio, wide frequency response, high efficiency, low distortion and low noise, good sound effect2. There is a volume adjuster, easy to adjust the sound3. With power reverse connection protection, short circuit protection and overheat protection4. Wide supply voltage and two input modes, higher efficiency5. Material: PCB circuit board6. Power supply voltage: DC 5-24V7. Bluetooth version: 5.08. Transmission distance: about 15 meters (visible and unobstructed)9. Number of channels: two channels (stereo)10. Output power: 20Wx2 12V 4 ohms, 30Wx2 16V 4 ohms, 30Wx2 21V 8 ohms, 40Wx2 24V 8 ohms11. Adapter speaker (40-200W): 4 ohms (5-16V power supply), 8 ohms (5-24V power supply)12. Module protection mechanism: power reverse connection/short circuit/self-recovery overheating protection13. Size: about 5.08x3.8x1.815cmPrecautions:1. Keep a safe distance from the router to avoid wifi interference2. It is recommended to use 5-24V DC power supply voltage, higher than 26V chip will burn3. The power supply should be within 16V when connected to a 4-ohm speaker, and within 24V when connected to an 8-ohm speaker4. The power supply current is recommended to be more than 2A5. The speaker cable should not be too long, it is recommended to be within 1m6. Pay attention to electrostatic protection. Before touching the power amplifier board, you need to release the static electricity on your hands to avoid the breakdown of the chip by static electricity. The Bluetooth chip is more sensitive to static electricity.7. It is recommended that the rated power of the speaker is 40W and above to avoid the speaker being overheated and burnedSpecification: Package Weight One Package Weight 0.05kgs / 0.10lb One Package Size 8cm * 6cm * 2.5cm / 3.15inch * 2.36inch * 0.98inch Qty per Carton 500 Carton Weight 27.00kgs / 59.52lb Carton Size 50cm * 50cm * 54cm / 19.69inch * 19.69inch * 21.26inch Loading Container 20GP: 197 cartons * 500 pcs = 98500 pcs 40HQ: 458 cartons * 500 pcs = 229000 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. Using the rotary encoder used in high-end speakers, stepless tuning, smooth hand feel, one-key start and stop2. High-quality all-copper DC plug, long life3. 3.5mm audio output, connected to active power box4. Free large area heat sink5. Number of channels: left and right dual channel (stereo)6. Protection mechanism: power reverse connection protection, short circuit protection, self-recovery overheat protection7. Purpose: Bluetooth speaker amplifier motherboard8. Bluetooth version: 5.09. Adapter speaker: 20-300W 4 ohm 8 ohm10. Transmission distance: 15 meters (without blocking)11. Supply voltage: DC 5-26V12. Dimensions: 53x18x58mm13. Weight: about 70gSpecification: Package Weight One Package Weight 0.08kgs / 0.18lb One Package Size 8cm * 8cm * 4cm / 3.15inch * 3.15inch * 1.57inch Qty per Carton 336 Carton Weight 30.00kgs / 66.14lb Carton Size 55cm * 55cm * 27cm / 21.65inch * 21.65inch * 10.63inch Loading Container 20GP: 326 cartons * 336 pcs = 109536 pcs 40HQ: 757 cartons * 336 pcs = 254352 pcs

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1. Bluetooth 5.0, high transmission efficiency and long transmission distance2. Large volume black gold heat sink to ensure efficient heat dissipation3. Potentiometer to adjust the volume, with switch, easy to control the volume, very suitable for DIY speakers, if it is a metal box, you need to lead out the Bluetooth antenna4. The copper DC connector is used, which can withstand large current and does not generate heat.5. 4 green gold capacitors to ensure power storage capacity, continuous and stable power supply is the premise of good sound quality6. Comes with a DC head with cable, which can be compatible with the input power interface of this product, even if you do not have a DC head adapter or battery, you can also connect easily7. The grid terminal is convenient for wiring, and the adjacent wires are not easy to be short-circuited8. Protection mechanism: self-recovery short circuit protection, self-recovery overheat protection9. Adapter speaker: 50-300W 4 to 8 ohms10. Transmission distance: 15 meters (without blocking)11. Power supply voltage: DC 5-24V power supply12. Rated power: 100w13. Number of channels: left and right dual channel (stereo)14. Precautions for use: The power switch on the board is a standby switch. After the switch is turned off, the machine is in a low-power standby state. To completely turn off the power or not use it for a long time, you can unplug the DC plug on the machine.15. Dimensions: 69 x 53 x 22mm16. Weight: about 124gSpecification: Package Weight One Package Weight 0.16kgs / 0.36lb One Package Size 10cm * 8cm * 4cm / 3.94inch * 3.15inch * 1.57inch Qty per Carton 182 Carton Weight 30.00kgs / 66.14lb Carton Size 56cm * 45cm * 22cm / 22.05inch * 17.72inch * 8.66inch Loading Container 20GP: 481 cartons * 182 pcs = 87542 pcs 40HQ: 1116 cartons * 182 pcs = 203112 pcs

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1. Using the rotary encoder used in high-end speakers, stepless tuning, smooth hand feel, one-key start and stop 2. High-quality all-copper DC plug, long life 3. 3.5mm audio output, connected to active power box 4. Free large area heat sink 5. Number of channels: Left and right dual channel (stereo) 6. Protection mechanism: Power reverse connection protection, short circuit protection, self-recovery overheat protection 7. Purpose: Bluetooth speaker amplifier motherboard 8. Bluetooth version: 5.0 9. Adapter speaker: 0-200W 4 ohm 8 ohm 16 ohm 10. Transmission distance: 15 meters (without blocking) 11. Supply voltage: DC 5-24V 12. Dimensions: 56x50x18mmSpecification: Package Weight One Package Weight 0.08kgs / 0.17lb One Package Size 10cm * 8cm * 2.5cm / 3.94inch * 3.15inch * 0.98inch Qty per Carton 200 Carton Weight 15.00kgs / 33.07lb Carton Size 42cm * 42cm * 27cm / 16.54inch * 16.54inch * 10.63inch Loading Container 20GP: 559 cartons * 200 pcs = 111800 pcs 40HQ: 1299 cartons * 200 pcs = 259800 pcs

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1. Using the rotary encoder used in high-end speakers, stepless tuning, smooth hand feel, one-key start and stop 2. High-quality all-copper DC plug, long life 3. 3.5mm audio output, connected to active power box 4. Free large area heat sink 5. Number of channels: Left and right dual channel (stereo) 6. Protection mechanism: Power reverse connection protection, short circuit protection, self-recovery overheat protection 7. Purpose: Bluetooth speaker amplifier motherboard 8. Bluetooth version: 5.0 9. Adapter speaker: 0-200W 4 ohm 8 ohm 16 ohm 10. Transmission distance: 15 meters (without blocking) 11. Supply voltage: DC 5-24V 12. Dimensions: 56x50x18mmSpecification: Package Weight One Package Weight 0.08kgs / 0.19lb One Package Size 10cm * 8cm * 2.5cm / 3.94inch * 3.15inch * 0.98inch Qty per Carton 200 Carton Weight 19.00kgs / 41.89lb Carton Size 42cm * 42cm * 27cm / 16.54inch * 16.54inch * 10.63inch Loading Container 20GP: 559 cartons * 200 pcs = 111800 pcs 40HQ: 1299 cartons * 200 pcs = 259800 pcs

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1. Model: XY-S220H 2. Item: 2.1 channel Bluetooth-compatible audio amplifier board 3. Power supply: above DC12-38V/10A 4. Bluetooth-compatible version: 5.1 5. Audio channel: 2.1 channel 6. Audio input: Bluetooth-compatible+AUX+U disk+USB sound card 7. Audio output: left and right channels + subwoofer 8. Frequency range: 20HZ--20KHZ 9. Volume adjustment: high-end encoder knob adjustment, smooth feel 10. Left and right channel maximum output power: 160W/4ohms----36V DC, 80W/8ohms---36V DC 11. Subwoofer maximum output power: 220W/3ohms----36V DC, 160W/4ohms----36V DC 12. Protection mechanism: overvoltage, undervoltage, clipping, short circuit, overheating, etc. 13. Unique function: Support Sinilink-APP to modify the Bluetooth-compatible name, set the 14. Bluetooth-compatible password, turn off/on the prompt toneSpecification: Package Weight One Package Weight 0.41kgs / 0.90lb One Package Size 15cm * 12cm * 4cm / 5.91inch * 4.72inch * 1.57inch Qty per Carton 40 Carton Weight 17.00kgs / 37.48lb Carton Size 42cm * 25cm * 32cm / 16.54inch * 9.84inch * 12.6inch Loading Container 20GP: 793 cartons * 40 pcs = 31720 pcs 40HQ: 1842 cartons * 40 pcs = 73680 pcs

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1. Product model: XY-E30H 2. Name: 2.1 channel for Bluetooth audio power amplifier board module 3. Power supply: DC9-24V/3A above 4. Bluetooth version: 5.1 5. Audio channel: 2.1 channel 6. Audio input: For Bluetooth + AUX 7. Audio output: left and right channels + subwoofer 8. Volume adjustment: high-end encoder knob adjustment feel smooth 9. Frequency range: 20HZ--30KHZ 10. Signal to noise ratio: 92dB 11. Output power: 15W x 2 (left and right channels) + 30W (subwoofer) 12. Satellite box (left and right channel) adapted speakers: 5W--30W/4 ohms--16 ohms 13. Subwoofer (subwoofer) adapted speakers: 5W--50W/4 ohms--8 ohms 14. Protection mechanism: electrostatic protection, overcurrent protection, short circuit protection, overheating protection 15. Unique function: Support Sinilink-APP, modify Bluetooth name setting, Bluetooth password close/open prompt sound 16. Dimensions: 70 x 73 x 20mm 17. Weight: 98gSpecification: Package Weight One Package Weight 0.12kgs / 0.27lb One Package Size 15cm * 12cm * 2cm / 5.91inch * 4.72inch * 0.79inch Qty per Carton 200 Carton Weight 21.00kgs / 46.30lb Carton Size 44cm * 32cm * 32cm / 17.32inch * 12.6inch * 12.6inch Loading Container 20GP: 591 cartons * 200 pcs = 118200 pcs 40HQ: 1373 cartons * 200 pcs = 274600 pcs

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1. Power supply: DC9-24V/2A and above 2. Bluetooth Version: 5.0 3. Audio input: Bluetooth + AUX input 4. Transmission distance: 15 meters (unobstructed) 5. Volume adjustment: high-end encoder knob adjustment, smooth feel 6. Adapter speaker: 10W-100W /4 ohm-16 ohm 7. Output power: 20Wx2 8. Protection mechanism: electrostatic protection, overheating protection, overcurrent protection, short circuit protection 9. Unique function: support Sinilink-APP control 10. Product size: 67 x 47 x 18mm 11. Material: PCB circuit boardSpecification: Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 10cm * 10cm * 3cm / 3.94inch * 3.94inch * 1.18inch Qty per Carton 180 Carton Weight 8.70kgs / 19.18lb Carton Size 42cm * 42cm * 32cm / 16.54inch * 16.54inch * 12.6inch Loading Container 20GP: 472 cartons * 180 pcs = 84960 pcs 40HQ: 1096 cartons * 180 pcs = 197280 pcs

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1. Power supply: DC9-24V/2A and above 2. Bluetooth Version: 5.0 3. Audio input: Bluetooth + AUX input 4. Transmission distance: 15 meters (unobstructed) 5. Volume adjustment: high-end encoder knob adjustment, smooth feel 6. Adapter speaker: 10W-100W /4 ohm-16 ohm 7. Output power: 20Wx2 8. Protection mechanism: electrostatic protection, overheating protection, overcurrent protection, short circuit protection 9. Unique function: support Sinilink-APP control 10. Product size: 67 x 47 x 18mm 11. Material: PCB circuit boardSpecification: Package Weight One Package Weight 0.06kgs / 0.13lb One Package Size 10cm * 10cm * 3cm / 3.94inch * 3.94inch * 1.18inch Qty per Carton 180 Carton Weight 10.50kgs / 23.15lb Carton Size 42cm * 42cm * 32cm / 16.54inch * 16.54inch * 12.6inch Loading Container 20GP: 472 cartons * 180 pcs = 84960 pcs 40HQ: 1096 cartons * 180 pcs = 197280 pcs

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ZK-LT22:1. Bluetooth version: 5.12. Bluetooth transmission distance: 10m3. Audio input: Bluetooth + AUX + U disk + USB sound card4. Audio output: 15W for left channel + 15W for right channel + 30W for subwoofer5. Adaptable power supply: DC9-24V, 7A (not connectable to AC)6. Speaker: left and right channel 10-30W, 4-8 ohms; subwoofer 10-30W, 4-8 ohms7. Protection mechanism: over temperature, over current, short circuit, anti-static protection8. Feature function: support Wuzhi Audio APP, modify Bluetooth name, password setting, beep volume adjustment, on/off beep, sleep aid song, firmware upgrade, etc. Pair box function, true wireless function allows two sets of speakers to be combined into a left and right channel pair box, with a stronger sense of spatial positioning9. U-disk support for more HD lossless formatsBluetooth decoding chip, better resolution, support remote firmware update, support TWS function10. Separate volume adjustment for subwoofer and stereo output11. Total volume is mechanical potentiometer, volume position is clear at a glance, multi-button function is abundant12. Dimensions: 75x70x20cm13. Weight: 77gZK-LT23:1. Bluetooth version: 5.12. Bluetooth transmission distance: 10m3. Audio input: Bluetooth + AUX + U disk + USB sound card4. Audio output: 50W for left channel + 50W for right channel + 100W for subwoofer5. Adaptable power supply: DC9-24V, 7A (not connectable to AC)6. Speaker: left and right channel 10-50W, 4-8 ohms; subwoofer 20-50W, 4-8 ohms7. Protection mechanism: over temperature, over current, short circuit, anti-static protection8. Feature function: support Wuzhi Audio APP, modify Bluetooth name, password setting, beep volume adjustment, on/off beep, sleep aid song, firmware upgrade, etc. Pair box function, true wireless function allows two sets of speakers to be combined into a left and right channel pair box, with a stronger sense of spatial positioning9. U-disk support for more HD lossless formatsBluetooth decoding chip, better resolution, support remote firmware update, support TWS function10. Separate volume adjustment for subwoofer and stereo output11. Total volume is mechanical potentiometer, volume position is clear at a glance, multi-button function is rich12. Dimensions: 75x70x20cm13. Weight: 78gSpecification: Package Weight One Package Weight 0.14kgs / 0.30lb One Package Size 11cm * 11cm * 8cm / 4.33inch * 4.33inch * 3.15inch Qty per Carton 234 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 234 pcs = 41418 pcs 40HQ: 412 cartons * 234 pcs = 96408 pcs

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ZK-LT22:1. Bluetooth version: 5.12. Bluetooth transmission distance: 10m3. Audio input: Bluetooth + AUX + U disk + USB sound card4. Audio output: 15W for left channel + 15W for right channel + 30W for subwoofer5. Adaptable power supply: DC9-24V, 7A (not connectable to AC)6. Speaker: left and right channel 10-30W, 4-8 ohms; subwoofer 10-30W, 4-8 ohms7. Protection mechanism: over temperature, over current, short circuit, anti-static protection8. Feature function: support Wuzhi Audio APP, modify Bluetooth name, password setting, beep volume adjustment, on/off beep, sleep aid song, firmware upgrade, etc. Pair box function, true wireless function allows two sets of speakers to be combined into a left and right channel pair box, with a stronger sense of spatial positioning9. U-disk support for more HD lossless formatsBluetooth decoding chip, better resolution, support remote firmware update, support TWS function10. Separate volume adjustment for subwoofer and stereo output11. Total volume is mechanical potentiometer, volume position is clear at a glance, multi-button function is abundant12. Dimensions: 75x70x20cm13. Weight: 77gZK-LT23:1. Bluetooth version: 5.12. Bluetooth transmission distance: 10m3. Audio input: Bluetooth + AUX + U disk + USB sound card4. Audio output: 50W for left channel + 50W for right channel + 100W for subwoofer5. Adaptable power supply: DC9-24V, 7A (not connectable to AC)6. Speaker: left and right channel 10-50W, 4-8 ohms; subwoofer 20-50W, 4-8 ohms7. Protection mechanism: over temperature, over current, short circuit, anti-static protection8. Feature function: support Wuzhi Audio APP, modify Bluetooth name, password setting, beep volume adjustment, on/off beep, sleep aid song, firmware upgrade, etc. Pair box function, true wireless function allows two sets of speakers to be combined into a left and right channel pair box, with a stronger sense of spatial positioning9. U-disk support for more HD lossless formatsBluetooth decoding chip, better resolution, support remote firmware update, support TWS function10. Separate volume adjustment for subwoofer and stereo output11. Total volume is mechanical potentiometer, volume position is clear at a glance, multi-button function is rich12. Dimensions: 75x70x20cm13. Weight: 78gSpecification: Package Weight One Package Weight 0.13kgs / 0.28lb One Package Size 11cm * 11cm * 8cm / 4.33inch * 4.33inch * 3.15inch Qty per Carton 232 Carton Weight 30.00kgs / 66.14lb Carton Size 50cm * 50cm * 60cm / 19.69inch * 19.69inch * 23.62inch Loading Container 20GP: 177 cartons * 232 pcs = 41064 pcs 40HQ: 412 cartons * 232 pcs = 95584 pcs

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1. 12V power supply, power failure memory2. Bluetooth call and recording function, Bluetooth version 5.03. Decode MP3, WMA, WAV, FLAC, APE lossless format music4. Read USB disk TF card5. 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. Dimensions: L112xW62mm, D22mmKey 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 card.2. REPEAT: Press once for the single song loop function, then press again to cancel the single song loop and play in sequence.3. VOL-key (previous song/volume down): short press for previous song in MP3 status, long press for volume down; short press for adjusting a station number upwards in FM status; short press for Bluetooth previous song in Bluetooth function, long press for volume down4. 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 BluetoothVOL+ button (next song/volume up): short press for next song in MP3, long press for volume up; short press for downward adjustment of a station number in FM; short press for next song in Bluetooth, long press for volume down6. MODE button: switch between USB / TF / FM / Audio input / Bluetooth function in sequenceSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 15cm * 8cm / 5.91inch * 5.91inch * 3.15inch 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. 12V power supply, power failure memory2. Bluetooth call and recording function, Bluetooth version 5.03. Decode MP3, WMA, WAV, FLAC, APE lossless format music4. Read USB disk TF card5. 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. Dimensions: L112xW62mm, D22mmKey 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 card.2. REPEAT: Press once for the single song loop function, then press again to cancel the single song loop and play in sequence.3. VOL-key (previous song/volume down): short press for previous song in MP3 status, long press for volume down; short press for adjusting a station number upwards in FM status; short press for Bluetooth previous song in Bluetooth function, long press for volume down4. 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 BluetoothVOL+ button (next song/volume up): short press for next song in MP3, long press for volume up; short press for downward adjustment of a station number in FM; short press for next song in Bluetooth, long press for volume down6. MODE button: switch between USB / TF / FM / Audio input / Bluetooth function in sequenceSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 15cm * 8cm / 5.91inch * 5.91inch * 3.15inch 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. LCD screen display with synchronised lyrics2. Bluetooth call and recording function, Bluetooth version 5.03. Decode MP3, WMA, WAV, FLAC, APE lossless format music4. Read USB disk TF card5. 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. 12V power supply, power failure memory10. Dimensions: length 90 x width 57 mm; depth 28 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 card.2. REPEAT: Press once for the single song loop function, then press again to cancel the single song loop and play in sequence.3. VOL-key (previous song/volume down): short press for previous song in MP3 status, long press for volume down; short press for adjusting a station number upwards in FM status; short press for Bluetooth previous song in Bluetooth function, long press for volume down4. 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 BluetoothVOL+ button (next song/volume up): short press for next song in MP3, long press for volume up; short press for downward adjustment of a station number in FM; short press for next song in Bluetooth, long press for volume down6. MODE button: switch between USB / TF / FM / Audio input / Bluetooth function in sequenceSpecification: Package Weight One Package Weight 0.08kgs / 0.18lb One Package Size 11cm * 7cm * 5cm / 4.33inch * 2.76inch * 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. Pure black and gold plated circuit board, imported KEMET audio capacitors, high capacity filter capacitors per channel. Special order pure black copper terminals, gold plated audio input terminals2. Protection: power input reversal protection, short circuit, overheating, over EMI3. Low quiescent current, noise suppression4. External amplifier type selection function (MODE: high level class D, low level class AB, factory default high level)5. External shutdown (SD: chip shutdown at low level, factory default high level)6. External mute (MUTE: low level mute, factory default high level)8. Input method: Single-ended9. Output power: 5W 2 ohms 5V; 3W 4 ohms 5V; 1.8W 8 ohms 5V10. Size: 55.12 x 32.26mm11. Weight: 25gSpecification: Package Weight One Package Weight 0.05kgs / 0.12lb One Package Size 12cm * 10cm * 6cm / 4.72inch * 3.94inch * 2.36inch Qty per Carton 500 Carton Weight 27.00kgs / 59.52lb Carton Size 50cm * 50cm * 54cm / 19.69inch * 19.69inch * 21.26inch Loading Container 20GP: 197 cartons * 500 pcs = 98500 pcs 40HQ: 458 cartons * 500 pcs = 229000 pcs

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1. Use NE5532 chip, can replace OP275, AD828, NJM4558, TL072 and other general-purpose dual op-amps2. Low quiescent current and noise suppression 3. Bass: 100HZ/80DB gain adjustment4. Tweeter: 10KHZ/80DB gain adjustment5. Frequency response: 20-20000HZ6. Signal to noise ratio: 98dB7. Supply voltage: DC9-24V (5 x 2.1mm core input, 2P chassis input)8. Rated power 2x770mW stereo (24V/32 ohms) can be connected to loads above 32 ohms9. Output method: 3.5mm audio jack10. Input method: 3.5mm audio terminal, 3P 2.54mm terminal block, 6P 2.5mm chassis11. PCB: 72x53mm12. Overall: 72x53x15mm13. Potentiometer knob opening: 7mm14. Distance between mounting holes: 47.58x36mm15. Net weight: 54gSpecification: Package Weight One Package Weight 0.10kgs / 0.23lb One Package Size 15cm * 10cm * 3cm / 5.91inch * 3.94inch * 1.18inch 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. Has high and low tones 2. Speaker power: 5-30W 3. Speaker impedance: 4-8 ohms 4. Input voltage: 9-24V 5. Input current: 2A 6. Audio input: BT+AUX+USB+USB sound card 7. Power output: 15W+15W 8. Number of channels: 2.0 9. Protection mechanism: overcurrent, overheating, short circuit, anti-static protection 10. Function: Support Wuzhi Audio App 11. Dimensions: 71 x 60 x 22mm 12. Weight: about 98G 13. Note: 24V batteries cannot be used for power supply, because the full voltage of the battery will be around 28VSpecification: Package Weight One Package Weight 0.11kgs / 0.23lb One Package Size 10cm * 8cm * 4cm / 3.94inch * 3.15inch * 1.57inch 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. Has high and low tones 2. Speaker power: 10-50W 3. Speaker impedance: 4-8 ohms 4. Input voltage: 9-24V 5. Input current: 3A 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. Function: Support Wuzhi Audio App 11. Dimensions: 71 x 50 x 20mm 12. Weight: about 106G 13. Note: 24V batteries cannot be used for power supply, because the full voltage of the battery will be around 28VSpecification: Package Weight One Package Weight 0.12kgs / 0.27lb 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. Speaker impedance: 4-8 ohms 2. Speaker power: 5-30W 3. Input current: 2A 4. Input voltage: 9-24V 5. Function: Support Wuzhi Audio App 6. Audio input: BT+AUX+USB+USB sound card 7. Power output: 15W+15W 8. Number of channels: 2.0 9. Protection mechanism: overcurrent, overheating, short circuit, anti-static protection 10. Dimensions: 71 x 50 x 20mm 11. Weight: about 76G 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 0.09kgs / 0.19lb 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. 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 0.10kgs / 0.23lb One Package Size 10cm * 10cm * 5cm / 3.94inch * 3.94inch * 1.97inch Qty per Carton 90 Carton Weight 10.10kgs / 22.27lb Carton Size 50cm * 32cm * 32cm / 19.69inch * 12.6inch * 12.6inch Loading Container 20GP: 520 cartons * 90 pcs = 46800 pcs 40HQ: 1209 cartons * 90 pcs = 108810 pcs

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1. Amplifier output can only be connected to independent speakers or passive speakers2. The product does not include a power supply, you need to provide their own power supply DC9-24V, pay attention to the quality of the power supply, you need a pure DC power supply, with a complete rectifier filter, such as directly separate transformer will burn out3. In the case of sufficient audio input, power supply voltage/current is sufficient, there will be enough output power4. The higher the power supply voltage, the higher the output power, the lower the impedance of the speaker, the higher the output power5. Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifierParameters:1. Bluetooth version: 5.02. Transmission distance: 15 meters without blocking3. Signal-to-noise ratio: greater than 95dB4. Input mode: USB+AUX+bluetooth5. Number of channels: left and right dual-channel (stereo)6. Amplifier chip: TPA3116D2 (with AM interference suppression)7. Adaptable power supply: DC9-24V/5A or above (the higher the voltage, the higher the output power)8. Adaptable Speaker: 20-200W, 2-8Ω9. Output power:- 20W x 2 @12V, 8Ω 35W x 2 @12V, 4Ω- 35W x 2 @19V, 8Ω 60W x 2 @19V, 4Ω- 50W x 2 @24V, 8Ω 90W x 2 @24V, 4Ω10. Protection mechanism: over-voltage, under-voltage, overheating, DC detection, short-circuit protection11. Size: 100 x 77 x 22mm12. Weight: 185g (including packaging)Specification: Package Weight One Package Weight 0.19kgs / 0.43lb One Package Size 13cm * 10cm * 4cm / 5.12inch * 3.94inch * 1.57inch Qty per Carton 80 Carton Weight 15.60kgs / 34.39lb Carton Size 41cm * 38cm * 32cm / 16.14inch * 14.96inch * 12.6inch Loading Container 20GP: 534 cartons * 80 pcs = 42720 pcs 40HQ: 1241 cartons * 80 pcs = 99280 pcs

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1. Amplifier output can only be connected to independent speakers or passive speakers2. The product does not include a power supply, you need to provide their own power supply DC9-24V, pay attention to the quality of the power supply, you need a pure DC power supply, with a complete rectifier filter, such as directly separate transformer will burn out3. In the case of sufficient audio input, power supply voltage/current is sufficient, there will be enough output power4. The higher the power supply voltage, the higher the output power, the lower the impedance of the speaker, the higher the output power5. Please make sure that the power of the adapted power supply is greater than the actual working power of the amplifierParameters:1. Bluetooth version: 5.02. Transmission distance: 15 meters without blocking3. Signal-to-noise ratio: greater than 95dB4. Input mode: USB+AUX+bluetooth5. Number of channels: left and right dual-channel (stereo)6. Amplifier chip: TPA3116D2 (with AM interference suppression)7. Adaptable power supply: DC9-24V/5A or above (the higher the voltage, the higher the output power)8. Adaptable Speaker: 20-200W, 2-8Ω9. Output power:- 20W x 2 @12V, 8Ω 35W x 2 @12V, 4Ω- 35W x 2 @19V, 8Ω 60W x 2 @19V, 4Ω- 50W x 2 @24V, 8Ω 90W x 2 @24V, 4Ω10. Protection mechanism: over-voltage, under-voltage, overheating, DC detection, short-circuit protection11. Size: 100 x 77 x 22mm12. Weight: 185g (including packaging)Specification: Package Weight One Package Weight 0.19kgs / 0.43lb One Package Size 13cm * 10cm * 4cm / 5.12inch * 3.94inch * 1.57inch Qty per Carton 80 Carton Weight 15.60kgs / 34.39lb Carton Size 41cm * 38cm * 32cm / 16.14inch * 14.96inch * 12.6inch Loading Container 20GP: 534 cartons * 80 pcs = 42720 pcs 40HQ: 1241 cartons * 80 pcs = 99280 pcs

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1. Bluetooth version: 5.0 (unobstructed, 15 meters)2. Signal-to-noise ratio: greater than 90dB3. Input mode: AUX+Bluetooth4. Number of channels: left and right dual-channel (stereo)5. Adaptable speaker: 15-100W, 4-8 ohms6. Protection mechanism: overheat/overcurrent/short-circuit protection7. Adaptable power supply:- 12V: 8 ohm/12W+12W, 4 ohm/20W+20W- 15V: 8 ohm/18W+18W, 4 ohm/30W+30W- 19V: 8 ohm/30W+30W, 4 ohm/30W+30W- 24V: 8 ohm/40W+40W, 4 ohm/50W+50W8. Size: about 8.9 x 6 x 2.1cm9. Weight: about 111g (including packaging)Tip: In the case of sufficient power supply voltage/current in the audio input will have 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 0.14kgs / 0.30lb One Package Size 14cm * 8cm * 3cm / 5.51inch * 3.15inch * 1.18inch Qty per Carton 280 Carton Weight 32.10kgs / 70.77lb Carton Size 50cm * 50cm * 50cm / 19.69inch * 19.69inch * 19.69inch Loading Container 20GP: 213 cartons * 280 pcs = 59640 pcs 40HQ: 495 cartons * 280 pcs = 138600 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 0.02kgs / 0.05lb One Package Size 12cm * 6cm * 2cm / 4.72inch * 2.36inch * 0.79inch Qty per Carton 360 Carton Weight 8.30kgs / 18.30lb 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: DC dual power supply ± 58 ± 70v2. Rated output power: 500w (± 65v power supply, 4 ohm load, 10% deformation)3. Efficiency: greater than 90%4. S / N ratio: 90db5. Total harmonic distortion:380w (+/- 65 power 4 ohm speaker, distortion <0.1%)280w (+/- 65 power 8 ohm speaker, distortion <0.1%)6. Frequency range: 20Hz-20kHz7. Voltage magnification: 36 times8. Input sensitivity 1.5v (RMS)9. Output short circuit protection: yes10. Output DC bias protection Speaker protection: yes11. Overheat protection: Yes, the temperature of the radiator is higher than 100 degrees Celsius, turn off the output!12. Product size: about 100 × 50 × 30mm13. Net weight: 100gSpecification: Package Weight One Package Weight 0.12kgs / 0.25lb One Package Size 15cm * 10cm * 5cm / 5.91inch * 3.94inch * 1.97inch 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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Notes1. The Micro:bit V2.0 board currently on sale in our store are V2.2 versions updated by BBC in 2022. The overall functions of the V2.2 board and the V2.0 board are the same, only little details are optimized and adjusted. 2. If you purchase this kit with Micro:bit V2.0, we will ship the V2.2 board by default. 3. 16-in-1 superkit programmable building block kit is designed based on BBC Micro:bit, which is composed of Super:bit expansion board, building block servo, Building block motor, battery and 358 building block parts. 4. We combine building blocks with electronic devices to bring your building blocks to life, and it can also play music and realize colorful lights. On the one hand, it allows children to learn programming. On the other hand, it can also cultivate children practical ability and stimulate creativity by assembling building blocks.Features1. Designed based on BBC Micro:bit, equipped with Super:bit professional expansion board. - Popular microcontrollers for children are suitable for STEAM education. - Super:bit expansion board specially designed for Micro:bit can integrate with building blocks well, build any shape, and drive building block servo, motor, RGB lights and other devices. 2. 16 kinds of building block models + full color printing project instruction manual - The building block parts of this kit are dominated by blue and white, the whole is full of science and technology,which can be assembled into N models. - The manual include assembly steps of 16 kinds of model and basic instruction content for programming. 3. MakeCode programming + Python programming, suitable for users with different ages. - MakeCode programming: Itcan effectively reduce learning threshold and improve children interest in learning by by dragging and splicing colorful building blocks - Python programming: A string of character commands control the building blocks, writing a wonderful chapter belonging to the Makers and building block enthusiasts. 4. Support APP/game handle remote control - When using different equipment to interact with the building blocks, user can experience the fun brought by technology. 5. Compatible with Lego building block, various gameplays - 16 kinds of models with up to 80+ gameplays, such as spider walking, helicopter propeller rotation, car wriggling, cannonball shooting, etc. - Users can also expand through more Lego bricks and build more interesting shapes.Specifications1. Applicable age: 8 years old and above 2. Programming language: MakeCode graphical programming/python programming 3. Remote control method: BT APP/ micro:bit gamepad 4. Main material: ABS 5. Onboard functions: RGB lights, buzzer, etc. 6. Number of building blocks: 358 high-precision building blocks 7. Motor/Servo: Motor x 2; Servo x 1 8. Operating temperature: 4-40 degrees CelsiusSpecification: Package Weight One Package Weight 1.65kgs / 3.64lb One Package Size 34cm * 30cm * 10cm / 13.39inch * 11.81inch * 3.94inch Qty per Carton 10 Carton Weight 17.50kgs / 38.58lb Carton Size 62cm * 52cm * 35cm / 24.41inch * 20.47inch * 13.78inch Loading Container 20GP: 236 cartons * 10 pcs = 2360 pcs 40HQ: 548 cartons * 10 pcs = 5480 pcs

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About The ProtuctThis world of module programmable robot kit includes 1 professional sensor expansion board, 2 building block servos, 10 electronic sensor modules and 300+ building block parts. Support MakeCode and Python programming, suitable for users over 6 years old. We have created more than 20 kinds of models, and also provided detailed experimental cases for children to learn programming and sensor knowledge while playing with building blocks.Features19 kinds of modules 1. 4 kinds of key input modules: button module, potentiometer module, rocker module, collision module. 2. 9 kinds of sensor modules: gesture recognition module, human body infrared module, infrared module, photosensitive module, sound module, temperature-humidity module, ultrasonic module, vibration module, color recognition module. 3. 2 kinds of display modules: digital tube module, RGB module. 4. 1 kind of remote communication module: infrared receiving module. 5. 1 kind of motor drive module: vibration motor module 6. 2 kinds of voice interaction modules: buzzer module, speech broadcast module. 3 kinds of expansion boards 1. Micro:bit expansion board: suitable for Micro:bit board, using MakeCode graphical programming, suitable for young children. 2. Arduino sensor expansion board: suitable for Arduino UNO board, using Arduino IDE C++ programming, suitable for students with programming experience. 3. Pico expansion board: suitable for Pico board, using Python programming, suitable for Raspberry Pi fans. Compatible with Lego blocks - A building block expansion package is available. Use anti-reverse PH2.0 cable 1. Buy any module and get a 30cm PH2.0 cable for free. 2. Easy to plug, and can avoid users connecting the line wrongly. Environmentally friendly and beautiful private mode case 1. Perfectly compatible with every module and does not affect any wiring. 2. Using ABS material, beautiful and durable. 3. Block holes are reserved on the bottom and around the case, which can be fixed on the blocks.Specification: Package Weight One Package Weight 0.98kgs / 2.16lb One Package Size 30cm * 23cm * 6cm / 11.81inch * 9.06inch * 2.36inch Qty per Carton 10 Carton Weight 10.50kgs / 23.15lb Carton Size 47cm * 32cm * 32cm / 18.5inch * 12.6inch * 12.6inch Loading Container 20GP: 554 cartons * 10 pcs = 5540 pcs 40HQ: 1286 cartons * 10 pcs = 12860 pcs

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Notices1. The Micro:bit V2.0 board currently on sale in our store are V2.2 versions updated by BBC in 2022. The overall functions of the V2.2 board and the V2.0 board are the same, only little details are optimized and adjusted. 2. If you purchase this kit with Micro:bit V2.0, we will ship the V2.2 board by default. 3. Yahboom micro:bit smart robot is developed with the most popular Micro:bit board as the core controller. Using Micro:bit dot matrix screen as the body, the entire vehicle adopts elaborate metal motor, high-quality battery and firm bracket to create a compact and beautiful appearance. And it is controlled by Android mobile App remote controller connecting with Micro:bit onboard Bluetooth. We also offer three kinds of comprehensive courses: simple development board experiments, more complex expansion board experiments, and interesting smart robot experiments.It is the best choice for all makers, educators, and amateurs.Features1.The car is a collection of Micro:bit board, learning kits, and expansion boards, allowing you to learn Micro:bit from simplest to more complex. 2. The vehicle model is small and cute. Most of the parts are connected with screws and a few parts are designed with the anti-reverse socket, which makes installation simple and safe. 3. Multi-function expansion board with vertical slot structure as chassis of the vehicle, it is equipped with RGB lights, sensors, buzzers, various module interfaces and so on, Besides, it can drive 2 DC motors and 3 servos simultaneously. 4.It supports multiple functions: tracking, ultrasonic obstacle avoidance, following, light discoloration, singing, playing music, etc. 5. It can be controlled by an Infrared remote controller, and APP remote control by Android / iOS. 6. It supports JavaScript graphical programming, Python and other micro:bit programming methods 7. More than 30 kinds of experiment courses are provided.Package List1. Expansion board x 1 2. Vertical ultrasonic sensor(Include cable) x 1 3. Motor x 2 4. Acrylic board for ultrasonic sensor 5. Tire x 2 6. Micro usb cable x 1 7. Infrared remote control x 1 8. Screwdriver x 1 9. M3 x 40 copper pillar x 4 10. Bracket x 2 11. Magic sticker x 2 12. Instruction manual x 1 13 Universal wheel x 1 14. Motor bracket x 2 15. Screw & nut set x 1 16. Track x 1 17. Packing box x 1Specification: Package Weight One Package Weight 0.62kgs / 1.36lb One Package Size 26cm * 23cm * 7.5cm / 10.24inch * 9.06inch * 2.95inch Qty per Carton 20 Carton Weight 13.00kgs / 28.66lb Carton Size 53cm * 47cm * 37cm / 20.87inch * 18.5inch * 14.57inch Loading Container 20GP: 289 cartons * 20 pcs = 5780 pcs 40HQ: 671 cartons * 20 pcs = 13420 pcs

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Notes1. The Micro:bit V2.0 board currently on sale in our store are V2.2 versions updated by BBC in 2022. The overall functions of the V2.2 board and the V2.0 board are the same, only little details are optimized and adjusted. 2. If you purchase this kit with Micro:bit V2.0, we will ship the V2.2 board by default. 3. Tiny:bit is a robotic car for the micro:bit education market. It is compact, easy to assemble, and easy to move in tight spaces. The Tiny:bit smart car is based on the micro:bit development board design and uses the online code programming of MakeCode and Python. Rich sensor applications allow Tiny:bit for easy interaction. The Tiny:bit smart car has a set of alligator clips on the rear that can be creative and expand.Features1. Simple design with small size. 2. Support Makecode graphical programming and Python programming. 3. "Interactive" Robotic car. 4. Alligator clip at the end. 5. Intelligent obstacle avoidance, following, playing music, tracking,Interesting lighting and APP supporting. 6. Compatible with building block.Package List1. Car chassis x 1 2. Remote control x 1 3. Motor x 2 4. Universal wheel x 1 5. Motor mounting x 2 6. Tire x 2 7. Micro USB cable x 1 8. Plastic rivet bag x 1 9. Line tracking map x 1 10. Manual x 1 11. Packing box x 1Specification: Package Weight One Package Weight 0.45kgs / 0.98lb One Package Size 26cm * 23cm * 7.5cm / 10.24inch * 9.06inch * 2.95inch Qty per Carton 20 Carton Weight 9.80kgs / 21.61lb Carton Size 53cm * 47cm * 37cm / 20.87inch * 18.5inch * 14.57inch Loading Container 20GP: 289 cartons * 20 pcs = 5780 pcs 40HQ: 671 cartons * 20 pcs = 13420 pcs

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1. Color: Black 2. Material: PA66 3. Frequency: 50/60HZ 4. Current: 0.14A 5. Voltage: 220-240V 6. Suitable for DIY project 7. Dimensions: 12.0 cm x 12.0 cm x 3.8 cm 8. Weight: 377gSpecification: Package Weight One Package Weight 0.43kgs / 0.94lb One Package Size 12cm * 12cm * 4cm / 4.72inch * 4.72inch * 1.57inch Qty per Carton 40 Carton Weight 17.00kgs / 37.48lb Carton Size 36cm * 36cm * 20cm / 14.17inch * 14.17inch * 7.87inch Loading Container 20GP: 1028 cartons * 40 pcs = 41120 pcs 40HQ: 2388 cartons * 40 pcs = 95520 pcs

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1. Model: 24T1812 2. Input: AC 16V-28V 3. Output: DC 12V 1.5A 4. Dimensions: 7.5 x 3 x 2cm 5. Weight: 38gSpecification: Package Weight One Package Weight 0.07kgs / 0.14lb One Package Size 8cm * 4cm * 3cm / 3.15inch * 1.57inch * 1.18inch Qty per Carton 400 Carton Weight 23.40kgs / 51.59lb Carton Size 42cm * 34cm * 32cm / 16.54inch * 13.39inch * 12.6inch Loading Container 20GP: 583 cartons * 400 pcs = 233200 pcs 40HQ: 1354 cartons * 400 pcs = 541600 pcs

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1. These units can be used for starting and stopping, or the connection and break of devices and electrical machinery. The product could also achieve the requirements of various kinds of special control procedures. 2. Each device connected will need to be powered by its own power source (there is no voltage output from the switch, it only acts as a connecter/dis-connecter for an existing live circuit). 3. If using a 24V device it can be wired in parallel with the switch power supply. Ideal use in 1. Vehicle central locking systems 2. Garage doors 3. Electronic gates 4. TV, Motors, Fans, Cameras, Video Signals, Audio Signals, RC applications, Electric 5. Doors/ Locks/ Windows/ Curtains and more 6. Lightweight and portable 7. Easy to install and use Specification: Receiver (Switch) Working Voltage DC 12V Remote Control (Transmitter) Operating Voltage DC 12V Operating Current 30MA Operating Frequency 315MHz Frequency Distance 20-200m (open place) Package Include Package Contents 1 x Wireless Receiver 1 x Transmitter Package Weight One Package Weight 0.09kgs / 0.19lb One Package Size 8cm * 3.8cm * 2cm / 3.15inch * 1.5inch * 0.79inch Qty per Carton 180 Carton Weight 12.60kgs / 27.78lb Carton Size 32cm * 25cm * 18cm / 12.6inch * 9.84inch * 7.09inch Loading Container 20GP: 1851 cartons * 180 pcs = 333180 pcs 40HQ: 4298 cartons * 180 pcs = 773640 pcs

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1. Circuit marker lets you draw electric circuits on circuit paper. Draw your own circuit on paper. 2. Make jumpers and shield electronics. 3. Make electronic circuits easily, so it''s good for education materials. 4. Provide a smooth pen like writing experience in a smooth paper. 5. Instantly magical pen DIY for student maker.Specification: General Size 14cm length Weight 22g Package Weight One Package Weight 0.05kgs / 0.11lb One Package Size 17cm * 5cm * 1.5cm / 6.69inch * 1.97inch * 0.59inch Qty per Carton 200 Carton Weight 8.40kgs / 18.52lb Carton Size 36cm * 27cm * 32cm / 14.17inch * 10.63inch * 12.6inch Loading Container 20GP: 857 cartons * 200 pcs = 171400 pcs 40HQ: 1990 cartons * 200 pcs = 398000 pcs

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1. Compact, lightweight, and durable rubber material can effectively protect your camera module. 2. Provides powerful protection against dust, scratches and damage to the camera module. 3. The black soft rubber sleeve provides a comfortable touch and provides better friction, which is not easy to slip from the hand, making it easy for buyers to use. 4. At the same time, a port is reserved on the protective case. 5. Package list: Soft rubber sleeve case x 1Specification: Package Weight One Package Weight 0.04kgs / 0.09lb One Package Size 15cm * 10cm * 1cm / 5.91inch * 3.94inch * 0.39inch Qty per Carton 300 Carton Weight 10.00kgs / 22.05lb 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. Weatherproof junction boxes, perfect for outdoor use. 2. The IP65 rating, great protection joining wires inside from rain and water. 3. The plastic screws on the lid will not rust and be easy to loosen. 4. The sides of the box are plain to allow you to drill your own cable entries where needed.Specification: General Material Plastic Size 10.1*5.3*3.4 cm Weight 65 g Package Weight One Package Weight 0.08kgs / 0.17lb One Package Size 13cm * 6cm * 5cm / 5.12inch * 2.36inch * 1.97inch Qty per Carton 150 Carton Weight 11.70kgs / 25.79lb Carton Size 50cm * 40cm * 30cm / 19.69inch * 15.75inch * 11.81inch Loading Container 20GP: 444 cartons * 150 pcs = 66600 pcs 40HQ: 1031 cartons * 150 pcs = 154650 pcs

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