1900mAh capacity charge for iPhone4 charger for iPhone4, charging&data sync it is a protective case, 1900mAh capacity charge for iPhone4Description:1,Input:5V-1A ... Output:5V-500mA 2,Capacity:1800mAh(Li-Pol) 3,Product Compatibility: iPhone4 ... 65g7,Charging cable included8,Neutral packing 1900mAh capacity charge for iPhone4