. Less-FrizzFeatured with keratin tourmaline coatings, the hair roller will release mass negative iron and far infrared rays during the styling process, which effectively reduces frizz and keep natural moisture, giving you shiny and gorgeous wave curls.. Fast HeatingWith advanced PTC heat technology, it helps instantly heat up to 300℉ within 30 seconds, save more time when you are in a rush. The hair curler is the best hair styling tool for busy working women..Beeps AlarmThe hair curler is designed with repeated beeps alert for finished Curling, you can clearly know when to release the button, even without any experience, you can also precisely control curling time and easily get charming hairstyles..Portable Curling wand-Create Elegant Bouncy Curls.1” Larger Rotating Barrel & Larger SlotUpgraded 1” larger barrel and larger U-shaped slot of this auto curling iron allow you to put more hair in it and reduce the time of curling.Using Tips-Please only put hair on ONE side of the barrel, Do Not put too much hair on Both sides If hair is stuck in the slot, just press the opposite button to release your hair. Press the direction button to curl, then wait for Beeps ending to release your hair.Package Included:1* Auto Hair Curler1* User Manual Dual Voltage: 100-240VSize: 9.4 x 2.4 x 1.8 InchWeight: 0.9 lbsTemperature Range: 300-390℉ ( 150℃- 200℃ )Smart Power Cut: 30min