GHD styler is all you need to create perfect curls, movement and volume Hair care accessory features advanced technology and smart features Beauty product has a rounder barrel to easily create waves, curls and flicks Sleep mode turns the heaters off after 30 minutes of non-use Iron features universal voltage, so no matter where you go in the world, the GHD styler will adjust itself to the voltage fro optimum performance Shiver mode turns the styler off if the room temperature falls below 41-degrees Fahrenheit to prevent internal condensation