Incipio offGRID Thin Battery Case for iPhone 4/4S, Glossy Black

Power and protection can be found in one sleek 6mm hard shell design. The iPhone 4/4S offGRID Backup Battery Case (Glossy Black) doubles the battery life of your device with a concealed battery built into the case. The offGRID Backup Battery Case provides full-coverage with the benefit of extended battery life.