Demodifier Audio Player One Channel Module Amplifier Amplifier Boar Amp Module Amplifier Decoding

Label:Yes Mute control: Yes Efficiency: 90% Volume adjustment: none Package Included:1Pc Mini Amplifier Board PCB Size: length 16 × width 10.5 × thickness 2.6mm (with protruding part) Installation: patch Output impedance: 4-8 Output power: mono 3W Frequency response: 150HZ-20KHZ Supply voltage: 2V-5V (3.7V lithium battery can be used)

Features: Power amplifier board with NS8002 (beyond the domestic 8002A, B, C, D) AB class efficient power amplifier chip carefully debug sound quality perfect, strong power, without any interference, it is fine!

Wiring instructions:This board should be grounded, 3 feet for the power supply negative and ground sharing. 1 foot for the quiet output, and 3 feet to be connected together, when the voltage is 0 when the sound, the voltage is 0.5-5V when the silent, no sound output.