Demodifier Board Module One Channel Amplifier Boar Amplifier Decoding Module Amplifier Amp Module

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

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.