TWIST SLIM 2.0 | The Twist Slim Pen 2.0 is a sleek, reliable vape battery that will become your new daily driver. The upgraded features include better flex temp, longer battery life, pulse wave tech, and automatic shut-off. -FLEX TEMP | The Twist Slim is equipped with flex temp, which means you can select a voltage level from the range 2.0V to 4.0V to heat the device. This is a lower voltage range than the original and is better suited to properly heat oil cartridges without burning them. -AUTO DRAW | There are 2 easy ways to get your fix with the Twist Slim! Use it just like the original and press the button down while taking a draw. You can also skip using the button completely and just take a rip! -WARRANTY | Every Twist Slim Pen is backed up by the Ooze Warranty Program! Use the authenticity code at the base to register your device on our site, which then activates your warranty. Fill out a warranty claim form if you ever run into an issue and we will exchange it with a new Twist Slim.