I2S Communication on ESP32 to Transmit and Receive Audio Data Using MAX98357A
Official Omnidirectional Microphone Module I2s Interface Inmp441 Mems High Precision Low Power Ultra Small Volume For Esp32 - Integrated Circuits - AliExpress
Making a baby monitor out of a couple of ESP32s, an I2S microphone, and a small speaker | Splinter Software
Sound with ESP32 - I2S Protocol | DroneBot Workshop