AITRIP 4PCS MAX4466 Electret Microphone Sensor Sound Sensor Amplifier Compatible with for Arduino Raspberry Pi ESP32

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MAX4466 Sound Sensor: Realize sound detection, analysis and recognition, and effectively amplify and preprocess weak sound signals so that subsequent algorithms can extract and analyze sound features power supply voltage: +2.4V to +5.5V (can be compatible with STM, Raspberry Pi and other development board motherboards); Power supply rejection ratio: 112dB; Common mode rejection ratio: 126dB; AVOL: 125dB (RL = 100kΩ) rail-to-rail output; Quiescent power supply current: <24μA; Gain bandwidth: 600kHz For the best performance, use the "quietest" supply available (on an for Arduino, this would be the 3.3V supply);On the back, there is a small trimmer pot to adjust the gain; You can set the gain from 25x to 125x Easy to use: connect GND to ground, VCC to 2.4-5VDC; For the good performance, use the 'quietest' supply available (this would be the 3.3V supply) Widely used in music playback, speech recognition, voice communication and other fields, it can improve the sensitivity and sound quality of the audio system