CSR8645 APT-X Lossless Bluetooth 4 1 module set up and test - YouTube
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Csr8645 Bluetooth Audio Module Dc 4v/5v/12v Isolated Apt-x Lossless Music Hifi 4.1 Receiver Board Amplifier For Car Speaker - Integrated Circuits - AliExpress
Amazon.com: Comimark 1Pcs CSR8645 Bluetooth 4.0 Stereo Audio Module Support APT Lossless Speaker Amplifier : Electronics
New Csr8645 4.0 Low Power Consumption Bluetooth Stereo Audio Module Supports Aptx - Integrated Circuits - AliExpress