Turning the 'AI Thinker Audio Kit' into an Arduino Bluetooth Speaker - Phil Schatzmann
ESP Audio DevKits I Espressif
I2S Sound Tutorial for ESP32
GitHub - pschatzmann/ESP32-A2DP: A Simple ESP32 Bluetooth A2DP Library (to implement a Music Receiver or Sender) that supports Arduino, PlatformIO and Espressif IDF
ESP32 A2DP SRC Bluetooth - YouTube
ESP32 Bluetooth Low Energy (BLE) on Arduino IDE | Random Nerd Tutorials