Insignia HD Radio Boombox Built-in Apple iPod and iPhone dock Supports 1st-, 2nd-, 3rd-, 4th-, 5th- and 6th-generation iPod nano, iPod with color display (20GB, 40GB and 60GB), 4th-generation iPod touch (20GB, 40GB), iPhone 3G, iPhone 3GS and iPhone 4 Built-in HD radio tuner With 10 station presets allows you to easily find and listen to your favorite radio stations Automatic Apple iPod charging When playing music or listening to the radio. Compatible with devices with a 3.5mm headphone jack via line-in connection For connecting an MP3 player or other portable audio device. Can run on battery power For portability (requires 6 C batteries, not included).