Griffin iTrip Auto FM Transmitter and Auto Charger for iPod (Black) Combines a powerful FM transmitter with an integrated charger in order to recharge your iPod Transmits clear music through your car stereo Features selectable LX and DX modes for best-quality audio under real-world conditions Can operate anywhere from the 88.1 to 107.9 MHz frequencies; range of 10 to 30 feet Compatibility: iPod nano 1G, 2G, 3G; iPod mini; iPod 3G, 4G, 5G, 5.5G, 6G. Not compatible with: iPod Nano 4G and 5G and iPod Touch 2G and 3G