E-smart e smart 510 1.3ml empty clear cartomizer/clearomizer comes with 1.8ohm, 1.3ml capacity, it is 510 thread. E-smart e smart 320mAh manual battery comes with 5-click protection: Generally, the battery is shipped in the off position. In off position, thebattery will not function even when pressing the button. To turn on battery, press manual button 5 times within 2 seconds. You will see white LED flash. To turn off battery, press manual button 5 times within 2 second as well, the white LED will flash! "5-click protection"can protect the battery from being activated when you do not want or do not use it. No more firing in your pocket!10 seconds cutoff time!White LED!E-Smart e smartkit Component: Our main special service as follows: