Latest ceramic coating technology The use of ceramic heating technology to release negative ions can reduce the evaporation of moisture in the hair during the heating process, thereby protecting the hair from excessive heat, making the hair brighter, healthier and more beautiful.     6 Heat Options: 300°F -390°F ( 150?- 200? )     11 Timer Settings: 8-18s     60 Min Cord-Free Run Time     Anti-Tangle & Scalding Design     Left / Right Rotation     Lightweight & Portable     Auto Shutdown  Common Q & A Q: Why automatic curling irons not curl hair? A: When curling hair, make sure to press the \"Curl\" button fully. After curling for a few seconds, you will hear multiple beeps, please don\'t let go. When you hear two beeps, release the \"Curl\" button and hair. To get long-lasting curls, use it with a styling spray / oil. Q: Is there a charging adapter in the package? A: The automatic hair curler comes with a charger cable USB ( Type C ). Please use a 5V / 2A adapter to charge the automatic hair curler. Q: How to solve the problem of accidentally stuck hair? A: There is a black plastic ring on the top of the curlers. When the hair gets stuck accidentally, push back to release the hair. Note: If you curl too much hair each time or operate incorrectly, the automatic curling iron will stop working to prevent tangling and pulling the hair.