Decompiler Audio Player Demodifier Amplifier Decoding Amplifier Boar Amp Module Module Amplifier

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