8000mah External battery ,the thinnest External battery for mobile,GPS,PSP,MP3/4(Iphone4G,4S,3G & Ipad3 etc) 1.Capacity: 8000mAh 2.INPUT: IN 1:microUSB 5V 1A; IN2 DC 5V 2A 3.OUTPUT:·OUT 1 - USB 1: 5V/1A ·OUT 2 - USB 2: 5V/2.1A 4.Dimensions:130*82*16mm 5.Compatible with:iPhone/mobile phones/ Tablets CE,FCC&RoHS