?Safe Use and Convenient Travel?It has the function of "automatic shutdown in 30 minutes without operation" to ensure safety after use. The voltage range is 100V-240V, which can be used worldwide. In addition, it comes with a storage bag for easy carrying when traveling. We offer a one-year warranty service. If you have any questions, please feel free to contact us at any time. ?Negative Ion Ceramic Hair Care Technology?The surface of the curly hair heating barrels is coated with professional tourmaline ceramic coating to evenly distribute heat and reduce heat damage to the hair. The negative ions emitted can lock in hair moisture, eliminate static electricity, and keep your curly hair curly, shiny, and beautiful for a long time, without heat damage. ?LCD Digital Display and Precise Temperature Control?The LCD screen display of the automatic rotating curling iron can help you easily set and view the desired temperature. The curling iron has four different temperature settings, ranging from 320 to 430 F, with precise temperature control. Accurate temperature control can help your hair achieve healthy heat styling at a constant temperature. ?Quick Heat Up and Automatic Reset Function?PTC heating professional tech to fast heat automatic rotating curling iron.The unique automatic reset function makes it easy for you to repeatedly operate during use. Just press the "HOME" button to restore the curly hair heating barrels and clip to their original position.Enjoy the fun of organizing hair and changing styles easily. ?3 in 1 Automatic Rotating Curling Iron Set?0.75 1 1.25 inch interchangeable barrels hair curling ceramic iron and it has bidirectional automatic rotation function.The curling iron using tourmaline ceramic technology helps to create a smooth and glossy effect on hair, reduce damage caused by friction on the surface of the hair, and naturally transmit far-infrared heat and negative ions, making it easier to achieve a healthy, perfect, and multi style heat styling.