i.Sound 2-in-1 Charger and Back Up Battery for iPod Touch and iPhone (Black) Includes: Back Up Battery, USB AC adapter, Retractable USB charging cable Up to 30 hours of additional music, 6 hours of video, 3 hours of talk time USB charging cable can charge iPhone/iPod and battery pack simultaneously Compatible with all iPod models with a 30 pin connector Works with iPhone and iPhone 3G