Usage Tips:Bluetooth 5.0 version, and compatible with 2.0 3.0 4.0 other versions of Bluetooth, can support the commonly used MP3 format audio, but also support the WMA WAV FLAC, and other high-quality audio format decoding, non-ordinary Bluetooth functions, can support DSD large capacity mission. Choose AUX from your radio and you can play music from your phone in your car. Match your phone or pad to bluetooth module.and Choose Aux from your radio, then you can use your phone to play music through car speakers. You can hear music from your phone/pad/mp3(They should have blueooth function). Fit for 2004-2008 BMW 7-series E65/E66 P.S:Only audio playback, can not be steering wheel control, can not be used answer the phone. Without a programmer, the external AV input interface of the car can be automatically activated. Bluetooth: V5.0 color:Black Material:ABS Package Contents: 1 set x Bluetooth AUX Cable Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.