The Iogear GearPower Leather Case for Apple iPhone 3GS or 3G with Built-in Battery Pack is a "must have" accessory for those power users with the need for a hard-side protection exterior. Concealed inside the case is a slim 1300mAh Lithium-Polymer battery pack, this pack offers up to 5 hours of extra talk time.
The case features an on/off switch for the battery pack to preserve power for when you most need it. Smart power management is an essential part of an effective mobile lifestyle. This stylish flip style case is easy to access and provides protection and power in one smart design. It keeps your cell phone protected when on the move and charged ready to use.