Description- The Bluetooth-compatible module is made for Mercedes-Benz- If there is MMI socket,our Bluetooth-compatible module will work.- Just plug the MMI connector into the socket back of your radio- Pair your phone or mp3 or pad with Bluetooth-compatible to the module, this name: Klevery- It is Bluetooth-compatible 4.1 version, not need password when connecting.- Choose AUX from your radio and you can play music from your phone in your car.Match your phone or pad to Bluetooth-compatible 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).Note:Only audio playback, can not be steering wheel control, can not be used answer the phone. Features:- Plug Play- MMI Stecker- Material: ABS Plastic- Bluetooth: V4.1- Supported Bluetooth-compatible profiles: A2DP (audio transmission)- Set up with auto-pairing in a minute- Existing CD changer can still be used- Function via Bluetooth-enabled devices- Cable length: 23cmCompatible withfor Benz (fit for 2009 and UP Model)- C class- CLS 2010- E class (W212 / S212)- M class- R class- S classand others with the special equipment Media Interface (Code 518) Note:Pls make sure your car has MMI socketPackage:1x Bluetooth-compatible Adapter Aux cable