5300 mAh dual usb universal mobile power bank 1.Green energy,fit for all digital devices 2.high capacity 3.double usb 3 usb output power bank 5300 mAhDetails:*2 USB output,let you charge 2 digital devices at the same time.*HIgh quality Li-polymer battery,over 500 times life cycle*5300mAh powerful battery capacity,make it super longer power supply*Clear & simple design,mobile & portable*4-Layer ...