... 4/4S, with 1,500mAh Capacity Rechargeable Power Case for iPhone 4/4S, with 1,500mAh Capacity Key Specifications/Special ... x 59 x 15mmCharger: 5V USBOutput: 5V/500mAWeight: 55g Rechargeable Backup Power Case for iPhone 4/4S, with 1,500mAh Capacity