The Ionic technology of the Revlon RV440 dries hair faster by reducing the size of water droplets and infusing moisture into the hair, while also preventing frizz and adding volume. Styles and dries all types and lengths of hair. Features an Ion on/off switch and has 3 heat and 3 speed settings including a cold setting. There are 1" and 1 1/2" interchangeable aluminum barrels that retain heat and create large and extra large curls and waves. Comes complete with an airflow concentrator attachment.