Fastest drying+: The small, powerful digital motor with Air Multiplier technology, produces a high-velocity jet of controlled air, for fast drying and precision styling. Prevents extreme heat damage to help protect shine: Intelligent heat control measures the air temperature over 40 times a second, to prevent extreme heat damage. Engineered for different hair types: Through research in our hair laboratories we've engineered a range of attachments designed to style different hair types. Acoustically tuned: The powerful motor is tuned to produce one inaudible frequency. Precise speed and heat settings: Delivers fast drying and styling, regular drying, and gentle drying with a constant cool flow. Negative ions: Help reduce static in the hair. Cool to touch: With Heat Shield technology, the surfaces of the attachments stay cool. Even during close-up styling.