Abstract: The invention-relates to a hands free mobile phone communication system comprising a mobile terminal for receiving information over a telephone connection, with a radio sender for sending said information over a selected frequency channel to an audio system, the audio system being equipped with a broadcast radio receiver and with an audio amplifier for an audio output of information received on said selected frequency channel, wherein determination means to determine an unused frequency channel, communication means for communicating said information within the communication system and switching means to switch the radio sender and the radio receiver to said determined frequency channel are comprised, and a mobile terminal and an audio system therefore.