Feature●Supported Bluetooth 5.0 A2DP (audio transmission)●Compatible with Mercedes-Benz B Class, C, CL, CLS Class, E Class, S SL SLK SLS Class, ML Class, GLK Class, R Class, W Class●Package includes: 1 x Bluetooth adapter cable●Note: Music is played via AUX-IN!! !●Note: A coding or activation of the Aux-in function may be necessary. !Description Installation: 1. Adjust your phone or pad to the Bluetooth module. 2. Select "Aux" from your radio and play music with your phone via the car speakers; you can listen to music from your phone/pad/MP3 (they should have Blueooth function). Note: audio playback only, can not be steering wheel control, cannot be used to answer the phone.