Griffin Technology 4026-LCDT iTrip LCD FM Transmitter for iPod Sports a large, easy to read backlit LCD screen to make setting its digital tuner easy and intuitive Sleek, attractive housing fits seamlessly on top of your iPod Battery-free design receives power from iPod itself Tunes to any FM frequency for the best possible performance Compatible with iPod Photo, iPod U2 Special Edition, 4th Generation iPod with Click Wheel