... 3.Output: 5V 1000mAh 4.Certificates: CE&ROHS 4000mAh portable mobile chargers1.Capacity: 4000mAh2.Input: 5V 1000mAh3.Output: 5V 1000mAh4 ... :Capacity: 4000mAhBattery type: Polymer Lithium-ion battery,high energy and safeInput voltage: 5VInput current: 1000mAOutput voltage: 5VOutput current: 1000mASize ... ,iPod,PAD,MP3/4/5,GPS etc.... 4000mAh portable mobile chargers for iPhone,iPad,Smart Phone