A portable MP3 player that transmits through your cars FM stereo. The device reads the MP3s from your SD card or USB Pen/Flash Drive. As an added bonus you can also connect any line in source, like your IPod or other portable music players.
With it's USB port it can transfer the MP3s from your PC to your SD card even if you don't have a card reader. The USB plug once connected to your cigarette lighter can be used to charge the battery on your I-Pod.
Also due to the device being powered via, it ensures a stronger clearer signal to your FM radio, than the similar battery powered transmitters.