TechWiz Lm386 200 Gain Audio Amplifier Module Board Adjustable Volume for Arduino Educational Electronic Hobby Kit

On-board LM386 Chip 20 multiplier benefits circuit design on-board speaker wiring Block on-board 10K variable resistor. you can adjust the volume of the enlarged On-board power indicator the chip pin leads. can be directly input audio signal Operating voltage: 5 ~ 12V