From the same company who brought you the Iolite now introduces the new portable handheld vaporizer called the Wispr. The Wispr is an improvement of the Iolite in many different ways. The Wispr has a venting system that releases the hot air from the unit keeping it alot cooler for you to hold. It also sports a butane fuel gauge on the outside so it is much easier to see how much fuel u have left. Another improvement on the Iolite is that the Wispr has a thermodynamic butane catalyst that last up to 3 hours without refilling the butane. The Wispr is available in 5 colors. Receive Free Priority Shipping and a FREE Herb Grinder with your Vaporizer!