- This product car quickly and easily set up the Digital Play and Car or Home audio system¡¯s wireless link. It only needs to connect the FM transmitter to MP3 player or any other audio player, for example:MP3 player¡ portable DVD¡,PDA¡,MP3¡,CD¡,tape recorder or computer. Set you FM Radio to clenest FM channel. - Build-in Li-on rechargeable battery. It has full frequency range function and LCD display. High fidelity stereo effect - Frequency channel£º Full range from 87.5MHz to 108MHz - Power supply includedes car charger - Works witth all iPod models - Can Work with any portable devices with and earphone jack such as other mp3 player,portable cd,laptops ,etc