Griffin iTrip LCD Dock Connector for iPod (White) Compatibility: iPod touch; iPod nano 1G, 2G, 3G; iPod classic 4G, 5G, 5.5G, 6G Uses an open FM frequency to play music through your cars FM stereo One-Touch Tuning: press, release, and the iTrip is tuned SmartSound technology auto-adjusts signal strength for each frequency Backlit display for easy viewing in any light