Kensington Battery Pack and Charger for iPod; iPhone 1G, 3G Compatibility: iPhone 1G, 3G; iPod classic 4G, 5G, 5.5G, 6G; iPod nano 3G Rechargeable battery pack extends playing time up to 100 hours of music, 21 hours of video, or 6 hours of talk AC power adapter with USB allows you to recharge your battery pack Includes dock connector to power and charge your iPhone and iPod Mini USB cable included to power and charge other mobile devices, such as cell phones, PDAs, and more