Intelligent heat control for shiny hair Offers protection against damage caused by excessive heat to preserve the natural shine of hair. The air temperature is measured 40 times per second, allowing for constant control. Powerful digital motor The Dyson V9 digital motor is fast, lightweight, and compact. Spins up to 110,000 RPM and pushes 13 liters of air per second. Fast drying The Air Multiplier™ technology combined with a powerful motor produces a high-pressure, high-speed air stream that allows for quick drying. Designed to be balanced We have completely rebalanced the weight and shape of the dryer, positioning the motor in the handle. Optimized acoustics The Dyson Supersonic™ is quieter thanks to its digital motor that spins at an inaudible frequency and is insulated to reduce vibrations.