The overheat sensor actively optimizes and controls the air temperature and protects your hair from damage caused by overheating. Enjoy stress-free hair drying with ThermoShield technology A stronger airflow of 2,300 W provides 20% faster drying while protecting your hair. The powerful motor of this hair dryer is designed for the professional market. It generates an air speed of up to 110 km/h, for fast drying and impressive styling. This ultra-powerful ion system emits up to 80 million ions per drying, creating extra shiny hair.