1.powerful with long operation 2.wide compatible 3.Output:DC 5V /2A 4.long cycle life mobile 5200 mah(Samsung) power bank power bank. USB port.Grade A battery cell.compatible with mobiles(included iPhone,Samsung,Motorola,Nokia,HTC….),MP3,MP4,MP5,PSP…;output: 5.0±0.25V,1A; input:5V,charge current:0.8 A. charge protection. mobile 5200 mah(Samsung) power bank