Heat conductor diameter 21mm-30mm Power supply wired (AC) Heat conductor material ceramic Temperature control adjustment 4-speed temperature control Shell technology spraying (UV paint, rubber paint, metal paint, piano paint, pearl powder) Rated power 42W Rated voltage 220VThe automatic curling iron is made of selected ceramic glaze, which generates powerful negative ionic clusters, thus firmly locking in the moisture of the hair, reducing heat damage to the hair during styling, eliminating static electricity, smoothing frizz, and making the hair soft and shiny. This curling iron is a great choice if you want to have curly hair styling without any effort and a perfect gift for women. Compared with rechargeable cordless curlers, wired curlers do not have battery problems, no need to worry about not being able to complete the styling effect due to low battery, and no more embarrassment of low battery when doing your hair. You can use it with confidence. (If the curling iron is not used for 60 minutes, it will turn off automatically). The curling iron offers 4 different temperature from 150°C to 210°C, suitable for a variety of different hair needs.Quickly heats up in 20 seconds.The curling iron offers 2 rotating directions, left or right, different directions to achieve different curling effects, which can easily meet your hair needs in different occasions. The automatic curling iron has a built-in smart sensor chip that stops the curling iron from working if you curl too much or mishandle your hair, preventing tangles and pulling. Double insulated shell prevents burning hands and face, safer to use. Dual voltage (100-240V), not limited by region, more convenient to travel and use. The automatic curling iron is designed for one-touch curling! Easy to operate, no skills required, U-shaped slot design helps you curl more hair and save time. Just press the button, you can quickly and easily get long-lasting and charming wavy curls that will keep your hair looking beautiful all day long.