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Reverse Engineering Your Own Bluetooth Audio Module | Hackaday
Bluetooth Audio Receiver Board(TWS/Apt-X)
Bluetooth Audio Receiver/transmitter Module Audio Formats Mp3 Wma Wav Flac Decode Board Lossless Bluetooth 4.1/5.0 Music Board - Integrated Circuits - AliExpress
Bluetooth Audio Receiver Template Stereo Wireless Speaker Power Amplifier Modified Diy Bluetooth Module 4.0 - Integrated Circuits - AliExpress
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Retired]PKB Bluetooth Audio Module (Stereo) – ElectroDragon
RN-52 - Bluetooth Audio Module - WRL-11678 - SparkFun Electronics
Amazon.com: Blue~Tooth Board, DROK 12V Audio Receiver Blue~Tooth Module DC 5V-12V Portable Wire~Less Electronics Stereo Music Receive Circuit Chip with Micro USB Port for Headphone Speaker Home Sound System DIY : Electronics
AudioB Bluetooth 5.0 Multipoint Audio Receiver Module