Fast drying. No extreme heat. Engineered for different hair types. Engineered for different hair types. Powerful digital motor. Designed for fast drying. The small, powerful Dyson digital motor V9 is, on average 6x faster than other hair dryer motors.¹ Combined with Air Multiplier™ technology, it produces a high-pressure, high-velocity jet of controlled air, for fast drying and precision styling. Intelligent heat control protects hair from heat damage. Unlike some others, the Dyson Supersonic™ hair dryer measures air temperature over 40 times a second, and regulates the heat. This helps prevent extreme heat damage, to protect your hair’s natural shine.