HX-FM03 ?Play music any portable audio devices to any FM equipped stereo. ?Wirelessly transmits the audio using FM frequencies. ?Perfect for any IPOD/MP3 or CD player which utilizes a standard 3.5mm headphone. ?Simply plug, tune & play. -------------------------------------------------------------------------------- INSTRUCTION: Plug Tune-Free transmitter into your music player, set Tune-Free and your stereo to the same FM frequency: (check the channel table for details). Turn on the Tune-Free and music player, the music will be transmitted the player to the FM stereo wirelessly. Note: for best results, frequency that has the weakest or no signal a radio station.