Technical Specifications UT-10 Power Source,USB Power Input volt / Current,DC 5 volts / 1A Power Output volt / Current,5 volts / 1A ~ 2.1A Charging Display, ,LED Display for showing remaining battery percentage Power Bank Tested with Devices,charge two devices at a same time Dual USB ports,, Protection,Over Charge, Under Voltage, Over Current, Under load, Over Load. Torch light,,No OPBE (Over all power bank efficiency),Powerful with long operation time Hold on remaining power percentage. Unitek Power Bank : Unitek portable power bank fully specially designed for auto charge and safety future is for any electronic gadgets. It can charge compatible with different kinds of mobile phone, media player tablet PC, Portable gaming device, cameras and other electronic gadgets. Unitek Key Feature: UT14 / UT10 Bank power input / output fully safety designed and full protection care off all electronic gadgets. 4kg