This video will explain it better than I possilby could. Before you go thinking I am crazy, it really does have amazing build quality for the price. It's sort of a beefy evic that you goes up to 6v and doesn't have the flimsy tubes, but you can't hook it up to your computer.
https://www.youtube.com/watch?v=RZNmRtTDdFQ
That would be pretty embarassing to go waving your ecig around while it vibrates.
Cool little charging gadget, but that already comes on an itaste MVP2, plus it's got an internal battery. I got my first mod a month or so ago, and I'm really digging the mvp, even though the box style is a smidge uncomfortable at times. The performance is really what I was after, so for someone who likes 8 watts even almost always it gets the job done and then some. I did have to drill out the beauty ring today though, for my Ismoka mega bcc. Quality steel, I might add.