DC 3.7V - 12V LM386 Electret Microphone Power Amplifier Board Gain 200 MIC Amp Potentiometer 5v 6v 9v

DC 3.7V - 12V LM386 Electret Microphone Power Amplifier Board Gain 200 MIC Amp Potentiometer 5v 6v 9v
sku: 33023399196
$1.99
Shipping from: China
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