Play your tunes through the radio. This FM transmitter will allow you to set a frequency and broadcast your music to your car radio. This is particularly useful if your radio does not feature an AUX and you have no other way of playing your music whilst in the car. This FM transmitter plugs into your MP3 player to enable music to be played through your car stereo system. Transmits on FM channels 88.1MHz-107.9MHz and can memorise up to 4 FM frequencies. Compatible with MP3, MD, CD, VCD, DVD, PDA. Preset functionality.