• 200 times gain circuit design. Onboard speaker terminal block..
• The on-board 10K adjustable resistor can adjust the volume of the amplification..
• Onboard power indicator..
• The main pins of the chip have been taken out, and the audio signal can be directly input..
• Working voltage: 5-12V..
• Imported from USA (Sizes & Specifications are based on the USA Market) .

Parameter:
200 times gain circuit design.
Onboard speaker terminal block.
The on-board 10K adjustable resistor can adjust the volume of
the amplification.
Onboard power indicator.
The main pins of the chip have been taken out, and the audio
signal can be directly input.
Working voltage: 5-12V.
Board size: 41 (mm) x 13 (mm)