2013 the enjoyable variable voltage ego VV3 upgraded from variable volt ego VV2 MEGA

2013 the enjoyable variable voltage ego VV3 upgraded from variable volt ego VV2 MEGA   

510/eGO system:
•Li-polymer:
1200mAh built-in Li-polymer battery .
•Common mini USB port :
Standard mini-B 5 Pin USB port ,same with regular PCC port.
•Smart auto lock protection
Prevent the battery and atomizers overloaded .
•Digital voltage setting:
Adjustable from 3.0-6.0v in .1 increments.
•USB passthrough :
.Use the battery while it's charging

  Varialbe Watt:From 3.0W to 15.0W accurate to 0.5w

 Resistance meter