Alwaysonline Stereo Amplifier Board Reserves 2 Control Ports PCB for DIY

Giới thiệu Alwaysonline Stereo Amplifier Board Reserves 2 Control Ports PCB for DIY

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1. [2 Control Ports] The PCB board reserves 2 control ports, one is to output high level first, and then output low level when power on or pause. The other one is to output a low level first, and then output a high level when it is turned on or suspended.
2. [Good Transmission Effect] The power amplifier board uses 5.0 main control , which has good transmission effect and high stability. This is for professional users to use external power amplifier DIY, ordinary users do not need to use it.
3. [With Button Control] With button control, it can control up and down songs, volume addition and subtraction, play, pause, switch on and off, etc., and reserve high and low level control interfaces, regardless of daily use or DIY modification, with strong playability.
4. [Output Interface and Power Interface] Power Interface: Powered by micro 5p interface, ordinary mobile phone charging cable can be used. (reserved 2.5mm welding port, does not support power). Output Interface: 3.5mm Stereo (reserved welding point, you can DIY).
5. [Practical Use] The signal of phone, , and tablet can be transmitted to power amplifier, active speaker and other device. The interface can also be connected to 3.5mm headphones to turn into headphones. (without mic, voice chat is not supported)

Specification:
Item Type: Board
Material: PCB
Colour: Black
Version: V5.0
Transmission Distance: About 10m / 33ft (the shorter the distance, the better the stability)
Output Interface: 3.5mm Stereo (reserved welding point, you can DIY)
Power Interface: Micro 5p (reserved 2.5mm welding port, does not support power)
Input Voltage: 3.7V-5V
SNR: 90dB
Total Harmonic Distortion +Noise:-70dB
Crosstalk: -86dB
DNR: 91dB
Transmission Protocol: A2DP/AVCTP/AVDTP/HFP

Package List:
1 x

 Receiver Board

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