Compatibility: - Fitment: E60: 5-Series: 525i, 525it, 528i, 528it, 530i, 530it, 540i, 540iT & M5 (Sedan and Touring) 2004 - 2010; E63 E64: 6-Series: 630Ci, 630i, 645ci, 650i, M6 (Coupe and Cabriolet/Convertible) 2003 - 2010; E65 E66: 735i, 735li, 740i, 740li, 745i, 745li, 750i, 750li, 760i, 760li (and) 2002 - 2008; M-ASK, ASK-CD and CCC; 1 Series (E87, EEE88, E81, E82), Series 3 (E90-E91-E92) Audio format decoding: - Bluetooth 5.0 protocol, backward compatible with Bluetooth 2.0, 3.0, 4.0 - Supports MP3 and decodes WMA, WAV, FLAC and other high-quality formats - Lets you listen to music from your phone, tablet or MP3 player Quick adjustment: - Connection is more stable and performance is improved - Pair your phone/tablet to the Bluetooth module, then select AUX on the radio - Play music from your device through the car speakers Stable operation: - Supports large capacity DSD transmission - Stable data transmission between devices, high fidelity and stable connection - Clear and stable sound for hands-free calls or music, enabling safer driving Applications: - Daily commuting with hands-free calls and music playback - Long road trips for reliable wireless audio to the car speakers - Easy switch between phone calls and music during driving