Mini 1000 mAh Battery Extender and Mobile Power Station for iPod; iPhone 1G, 3G Compatibility: iPod nano 1G, 2G, 3G; iPod classic 4G, 5G, 5.5G, 6G; iPod touch; iPhone Power and charge your iPhone or iPod--extends play time up to 30 hours of music or 6 hours of video (on iPod nano 3G) or 3 hours of talk (on iPhone) Can charge your iPhone and battery pack at the same time using AC/USB power cable 1000 mAh battery, strongest clip on battery in the world with no cables for the iPhone. Excellent quality with high-end parts Small enough to keep connected to your iPhone or iPod