ITEM NAME:LM386 200 Gain Audio Amplifier Module Board Description: Chip LM386 200 gain 10K onboard adjustbale resistance, can be adjusted to amplify the volume onboard power indicator You can directly input audio signal Low distortion onboard volume control potentiometer clockwise to increase the volume Working voltage: 5-12V low static power consumption, quiescent current of about 2mA, suitable for battery-.Chip LM386. 1 x Audio Amplifier Module. You can directly input audio signal. Board size: Approx. People always bought together with. onboard power indicator. low static power consumption, quiescent current of about 2mA, suitable for battery-powered.