With the innovative solutions from Mercedes-Benz you can connect mobile audio devices in your vehicle and telephone with ease. With the universal interface, for example, you can connect mobile audio devices such as media players and USB sticks. The Bluetooth® interface provides a wireless connection for your mobile phone. In this sense, the convenience telephony solution is particularly comfortable: your mobile telephone can remain in the phone cradle constantly – this way it is you that decides how long your phone calls last, and not the battery of your phone.