Vidal Sassoon VS501 1875W Ionic Sensor Touch Hair Dryer Features: Unique Sensor Touch Technology - Automatically turns dryer "on" when picked up, turns dryer "off" when put down Professional rocker switches provide 8 heat and speed combinations for ultimate styling control Cold Shot button releases cold air to set the style Concentrator attachment for precise drying and styling Removeable end cap for easy cleaning Professional heavy duty 9 foot power cord Three-year warranty Ionic Technology: Negative ions cause large water droplets on the hair to be broken up into smaller drops. When droplets are smaller, more water is absorbed into the hair, resulting in hair that is dried more quickly This also adds more moisture to the hair follicle for a conditioning and smoothing effect. More light is reflected off a smooth surface, making the hair look shinier