Every jack has a security protection ‎,‎ The portable is safer and avoid contact with jack directly‎.‎ Multi‎-layer is free to choose according to different needs‎.‎  It‎'‎s easy to charger your mobile phone‎,‎tablet‎,‎MP3‎,‎MP4 and other devices‎.‎  With children safety shield technology‎,‎ adult can effectively prevent the children to electric shock‎.‎ Particular preferred 1.8m power cord which has passed 3C certification and can bear 10A current‎.‎ Supports charging smartphones‎,‎ tablets‎,‎ cameras‎,‎ music players‎,‎  Supports fast charging by USB cable‎.‎ The USB Output‎:‎ Max DC5V‎,‎ 2.1A