ZkeeShop 3Pcs Electret Microphone Amplifier MAX4466 Module Adjustable Gain Board GY

Using is simple: connect GND to ground, VCC to 2.4-5VDC. For the best performance, use the "quietest" supply available (on an Arduino, this would be the 3.3V supply). The MAX4466 is a micropower operational amplifier optimized for use as a microphone preamplifier. Add an ear to your project with this well-designed which has excellent power supply noise rejection. The board comes with a 20-20KHz electret microphone soldered on. This breakout board is best used for projects such as voice changers, audio recordingmpling, and audio-reactive projects that use FFT.