1.Double USB port 2.Power conversion rates: 80% 3.12000mAh capacity 4.8 Different Type Of Charge Connectors 5.Bargin price 2013 hot Universal power bank 12000mAh with double usb portSpecification (DY-912) Product nameHigh capacity portable charger power bankModel NO.DY-912ApplicationsMobile phone, and MP3/MP4, PDA, PSP, iphone, And ipad,Samsung, sony-Ericsson, Nokia, OPPO, HTC etc. ...