The New Twist Slim 2.0 makes a very popular pen even better. The Twist Slim Pen by Ooze is a huge crowd favorite as is, many people use it as their daily driver if they are cartridge users. The 2.0 gets even better with a new sleeker look, awesome colors, and a longer battery life. It can precisely go any voltage from 2.0V-4.0V and now has a more flush connection on top so it can slip into your pocket easier and is overall better looking. A great feature with the 2.0 is that it has a push and inhale option and it also has draw activation so if you just start inhaling it will do it's job. It also charges really quickly with the new USB-C charging and the original charger as well. The 2.0 is obviously very versatile and easy to use.User Manual Features: - 320mAh Longer Lasting battery- Variable Voltage(2.0V-4.0V)- Prep Mode(Preheat)- Auto Draw- Button Activation- Regular 510 charging and USB-C Charging- Sleek new Look What's In The Box: x1 Twist Slim 2.0 Batteryx1 Ooze USB Charger