Rechargeable 1700mAh lithium ion polymer battery and protective case in one.;Up to 6 hours of talk time on 4G and LTE. Up to an additional 8 hours on 3G.ﾃつ Up to 40 hours of additional audio playback.ﾃつ Up to an additional 10 hours of video playback.;Soft touch finish - Sleek poly carbonate ABS materials in a sleek soft touch design.;Quick 1 amp recharging speed.;Made for iPhone Apple Certified.