Mobile Power for iphone 4/4S 1.2000mAh for iPhone4/4S 2.simple, business wind, functional 3.certification:CE,FCC,RoHS Ultra slim dimension ... Mobile Power for iphone 4/4S Mobile Power for iphone 4/4SLithium polymer ... Brown,YellowCell type: Li-polymer batteryPicture show: Ultra slim dimension Mobile Power for iphone 4/4S