I Made my own Audio Bluetooth module - Hackster.io
3.7-5v Mini Bluetooth Stereo Audio Receiver Board Module With Mic For Arduino Mp3 Player Bluetooth Lossless Decoder Board Type-c - Integrated Circuits - AliExpress
Bluetooth Audio Receiver Module - 5V - for DIY Wireless Speaker | Arduino, DIY \ Communication \ Bluetooth
Bluetooth Audio & Digital Signal Processing: an Arduino Framework : 10 Steps - Instructables
ESP32 Bluetooth Classic with Arduino IDE - Getting Started | Random Nerd Tutorials
Reverse Engineering Your Own Bluetooth Audio Module | Hackaday
Build Arduino Bluetooth Speaker with Reactive NeoPixel LEDs
JDY-62 Stereo Dual Channel Audio Bluetooth 4.0 Module Compatible with Arduino JDY-62 Stereo Dual Channel Audio Bluetooth 4.0 Module Arduino IOS [RKI-4629] - ₹230.00 : Robokits India, Easy to use, Versatile Robotics & DIY kits
Arduino Bluetooth Audio Transmitter Module Manufacturers and Suppliers - Wholesale Products - FEASYCOM
GitHub - pschatzmann/ESP32-A2DP: A Simple ESP32 Bluetooth A2DP Library (to implement a Music Receiver or Sender) that supports Arduino, PlatformIO and Espressif IDF