The Ultimate Kit by Smoov is a fantastic starter kit for all you new vapers and an excellent kit for those of you who are already vapers. This kit features the best of both worlds, you get one variable voltage 650mah Smoov Rev which allows you to adjust the voltage from 3.3 all the way up to 4.8. You also get a Smoov Pass-through 650mah battery. With the pass-through batteries they charge on the bottom making it extremely convenient for all of you who spend a lot of time in your car, on your computer, or for you vapers who absolutely are too impatient to wait for your battery to fully charge before you can take a pull off of it, I know I am. The Ultimate kit also comes with all the chargers you need, a 2ml clearomizer, and three replacement coils! When Smoov says ultimate they truly do mean it!