Dexim DPA041 P-Flip 7-in-1 Bundle Pack Foldable Power Dock - iPhone/iPod Touch World's first foldable, portable & rechargeable power dock battery for iPhone 4 / 3GS / 3G / iPod Touch 3G Free PFlip Clock APP in the Apple Store 2000mAh Lithium Polymer Battery Adds up to 8 hours Talk time Adds up to 15 hours Video