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Max9814 Electret Microphone Amplifier Board Module Mic Auto Gain Max 40db/50db/60db Frequency 2.7v-5.5v With Pins For Arduino - Instrument Parts & Accessories - AliExpress
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MAX9814 Electret Microphone Amplifier Board Module MIC Auto Gain Max 40dB/50dB/60dB Frequency 2.7V-5.5V with Pins for Arduino: Amazon.com: Industrial & Scientific
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