Easily connects your iPod device, portable MP3, CD, MD,VCD,DVD,cassette player, PC, or laptop to your car stereo, through your car's in-dash cassette player Simply plug into your iPOD, CD or MP3 player, then place the cassette into your cassette player and press play. Its as easy as that! Designed for outstanding audio performance and use on the road, the Adapter reduces noise by automatically maintaining the correct tension within the cassette deck as you drive. Requires no external power supply. (Apple iPOD Accessory)