The Exxus Twistr is a standout device that employs one of a kind features for an overall elevated experience. Using advanced technology this device allows the user to control their voltage with a simple twist. At the base o the vape pen there is an adjustable dial that twist between four different voltage settings. Pick form 2.0V all the way up to 4.2V and enjoy puff after puff with a durable, ergonomically constructed portable device. It doesn’t stop there, the Exxus Twistr also incorporates preheat mode for hands free operation and 15 second intervals for quick sessions. Two clicks of the power button activates the preheat and one stops it when you are done.