LM386 audio amplifier module, mini power amplifier board, DC 3-12V, volume adjustable control.
Power supply: DC 3-12V, suggestion >= 5V;
Speaker power: 0.5W -10W, suggestion 8W speaker is the best. On-board volume control potentiometer, clockwise to increase the volume, with power indicator light. Low power consumption, updated within the chain gain adjustable, large supply voltage range, fewer external components, and widely used in tape recorders and radios. Low static power consumption, the quiescent current of approximately 2MA, ideal for battery-powered use