Features: 1. Bluetooth 5.0 version, backward compatible with Bluetooth protocols 2.0, 3.0, and 4.0. 2. Supports common MP3 format audio, as well as WMA, WAV, FLAC, and other high-quality audio format decoding. 3. Supports DSD large-capacity transmission, ensuring stable data transfer between devices and hi-fi sound quality. 4. Pair your phone or tablet with the Bluetooth module, then select Aux on your radio to play music from your phone through car speakers. 5. This adapter allows you to listen to music from your phone, tablet, or MP3 player that has Bluetooth capability. 6. Supports hands-free calling with clear sound quality. Plug and play design for easy installation and convenient use. Specification: Item Type: Bluetooth AUX Adapter Material: ABS Voltage: DC12V Bluetooth: Bluetooth 5.0 Microphone Cable Length: Approx. 150cm / 59.1in (manual measurement, slight variation may occur) Fitment: Compatible with (E60): 5-Series: 525i, 525it, 528i, 528it, 530i, 530it, 540i, 540iT & M5 (Sedan and Touring) 2004 - 2010 Compatible with (E63) (E64): 6-Series: 630Ci, 630i, 645ci, 650i, M6 (Coupe and Cabriolet/Convertible) 2003 - 2010 Compatible with (E65) (E66): 735i, 735li, 740i, 740li, 745i, 745li, 750i, 750li, 760i, 760li (including diesel models) 2002 - 2008 Compatible with M-ASK, ASK-CD and CCC systems Compatible with 1 Series (E87, E88, E81, E82), Series 3 (E90, E91, E92) Installation: 1. Locate the pin socket on the car (on the back of the radio) 2. Install the adapter directly and connect the power cord. Package List: 1 x Bluetooth AUX Adapter 1 x Microphone Note: Before purchasing, please confirm that the CD player interface matches our product interface, as compatibility is required for use. Before purchase, verify that your vehicle's original audio system has an AUX mode, as this cable only works with AUX input; ensure the system is set to AUX mode before playing music.