Compatible with any portable music device, Sony's DCC-FMT3 DC Cigarette Lighter Mobile FM Stereo Transmitterlets you listen to your digital music over your car stereo while charging your portable audio device. Using a small FM transmitter, this device acts as a miniature radio station broadcasting your music to seldom used FM frequencies. The DCC-FMT3 stores 12 channels so you get a good, strong signal, the DCC-FMT3 lets you listen to your portable music on your cars stereo system with ease.