Altec Lansing inMotion iM7 Portable Audio System for iPod (White) Compatibility: iPod nano 1G; iPod mini; iPod 3G, 4G, 5G, 5.5G Booming iPod speaker dock with stylish rounded design for easy portability Exceptional low frequency bass from the built-in 4-inch side-firing subwoofer Powered by AC adapter (international plugs included) or 8 D batteries (not included) Video output jack, 3.5mm audio line-in jack for connecting iPod Shuffle and other MP3 players