LM386 Amplifier Board Electret Microphone Audio Hearing Aid Amplifier Circuit Module for Electret MIC Amplification

Amplifier Circuit Module
$1.69
Quantity
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Description
LM386 Amplifier Board Electret Microphone Audio Hearing Aid Amplifier Circuit Module for Electret MIC Amplification
Product Description
Using LM386 amplifying chip, the magnification is 200 times, which can directly drive low-power speakers, suitable for electret microphone head amplification

Practical application

Make a hearing aid for the deaf: the board is connected to the microphone, the power supply, and the earphone is a good hearing aid for the deaf.
Specification
item
value
Working voltage
DC 3.7v-12v
Board size
25mm*25mm
Details Images