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, and FLAC high-quality audio format decoding. 3. Supports DSD high-capacity transmission, ensuring stable data transfer between devices and high-fidelity 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: Fits (E60): 5-Series: 525i, 525it, 528i, 528it, 530i, 530it, 540i, 540iT & M5 (Sedan and Touring) 2004 - 2010 Fits (E63) (E64): 6-Series: 630Ci, 630i, 645ci, 650i, M6 (Coupe and Cabriolet/Convertible) 2003 - 2010 Fits (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 Fits 1 Series (E87, E88, E81, E82), 3 Series (E90, E91, E92) Installation: 1. Locate the pin socket on the back of the car 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 verify that the CD player interface matches our product interface, as compatibility is required for proper function. Confirm that your vehicle's original audio system has an AUX input mode. This cable only works with systems that support AUX mode. You must switch to AUX mode before playing music.