The Pax Era vape pen is, truly, one of a kind. It looks like a USB stick and feels just as small and light. It produces clean and smooth vapor from their oil cartridges. And, the whole thing comes with an app on your phone where you can control the temperature of the vapor. If you thought a Roomba was cool, then you're going to have your mind blown by this vape pen. With over 200 different brands and strain cartridges to choose from, you'll have your pick of the litter for the best cannabis consumed in the best way possible.