Fast drying. No extreme heat. Now with the new Flyaway attachment. At the heart of the Dyson Supersonic™ hair dryer is the Dyson digital motor V9, which spins at up to 110,000rpm. Combined with Air Multiplier™ technology, it produces a high-pressure, high-velocity jet of controlled air, for fast drying and precision styling. The Dyson Supersonic™ hair dryer measures air temperature over 40 times a second, and regulates the heat. This prevents extreme heat damage, to help protect your hair's shine. Inspired by professional stylists, the new Flyaway attachment harnesses the Coanda effect to lift longer hairs and hide flyaways. Giving you a smooth, salon finish1, at home. 1 For use on dry and straight[ened] hair.