NEW VERSI DENGAN POTENSIO LM386 amplifier chip, the magnification can be adjusted by the board above the adjustable resistance between 20 times to 200 times, you can directly drive low-power speakers for the use of electret microphone. Operating voltage: DC 4V-12V Board size: 20mm * 20mm Package Included: 1 x LM386 module mic Power supply: 5V-12V Input support: electret, microphone, condenser microphone, moving coil microphone, audio signal
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