Revlon Pro Collection Salon One Step Hair Dryer & Volumizer Brush Black Pink- This hot airbrush is a perfect combination of hairdryer and hairstyling to help you straighten and curl your hair while drying, and for all types of hair. 3 Temperature Settings The bottom is a rotary adjustment gear switch, which can be adjusted to the current working state by rotation, and set 3 heat/wind power setting. ONLY USED TWICE.