Designed for high performance and no heat damage, on all hair types. Includes Scalp Shield — designed to protect new hair growth from extreme heat. High-velocity airflow delivers wet-to-dry styling with no heat damage. Achieve flawless salon-quality blow-dries, defined curls, and a high-gloss shine at home. High velocity airflow goes from 0-100 mph in less than a second. Activate to instantly reduce air temperatures to the optimum safe level for scalp comfort and root drying. Designed to protect new hair growth from extreme heat. Developed with dermatologists. Approved by stylists. SpeedStyle Pro measures and regulates temperature 1,000 times a second, never exceeding 110°C.