MAX9814 High Performance Microphone AGC Amplifier Module
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
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