Special Features
- Onboard LM386 chip, 200x gain circuit design
- Onboard speaker wiring socket, onboard power indicator light
- Onboard 10K adjustable resistor, capable of adjusting the volume of amplification
- The main pins of the chip have been led out and can directly input audio signals
- Working voltage: 5~12V, board size 41 (mm) x 13 (mm), packaging quantity: 5PCS
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