Motorola Bluetooth Automotive Music & Hands-free System combines hands-free conversations on your cell phone with streaming music from a bluetooth compatible device such as an MP3 player or music enabled cell phone. Adjust and control volume as well as answer, end, mute or place calls - all directly from a highly stylized control panel (pictured) that conveniently mounts to your dashboard with bonding tape . Music automatically mutes when placing or receiving a call and resumes when you're finished with the call. Bluetooth device must support A2DP profile for music streaming or you can use the option 3.5 mm wired port for non-bluetooth music devices.