Designed specifically for the Nolan N104 helmet. Allows the freedom to talk on a mobile phone, listen to music on an MP3 player or built-in FM radio, get directions from a GPS navigation system, connect to a bike-to-bike radio, connect to some bikes existing audio systems or talk to a passenger via intercom. FM radio features search function and six station pre-settings. Telephone via Bluetooth: answering, hanging up, voice commands, redialing the last number (for telephones that allow it), intercom/phone automatic management. Automatic exclusion of intercom and of the connected audio source during a telephone conversation; automatic reconnection at the end of the phone call.