I2S MEMS Microphone Breakout - ICS-43434

MEMS mics can detect sound and convert it to voltage, but they're way smaller and thinner. This microphone doesn't even have analog out, its purely digital. It is a small, low cost MEMS mic with a range of about 50Hz - 15KHz, good for just about all general audio recording/detection.

Instead of an analog output, it communicates using I2S, a standard audio data protocol (not to be confused with I2C).

This microphone is best used with microcontrollers or computers that have hardware I2S peripheral support such as the Cortex M-series chips like the Arduino Zero, Feather M0, or single-board computers like the Raspberry Pi.

More information is available on the website of Adafruit.