For Dc 3v 3.7v 5v Class Ab Mono 3w Mini Amplifier Board O Amp Module One Channel

Description:
100% Brand New and High Quality
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.

Specifications:
Installation: SMT patch
Output power: mono 3W
Supply voltage: 2V-5V (3.7V lithium battery can be used)
Output impedance: 4-8
Frequency response: 150HZ-20KHZ
Efficiency: 90%
Mute control: Yes
Volume adjustment: none
PCB size: 1.6×0.6cm/0.63×0.24″ (with protruding part)
Quantity: 1 Pc

Note:
Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you
No Retail Package

Package Includes:
1 x Mini Amplifier Board