3-in-1 Multi-function for Different HairstylesThe curling brush can be used for curly and straight hair, and can also be used as a normal comb for long hair. Note: It is not a hot air brush, but a curling rod. Anti-scalding, safe to useNylon bristles and thermosetting cold tip time prevent heat during styling. Negative ion healthy hair care technologyThe ceramic and tourmaline barrels of the curling rod produce millions of negative ions to keep your hair healthy and soft. Adjustable temperature suitable for all hair types130 to 220 temperature-controlled LCD digital display: 130-160 for fine hair/fine hair/normal hair, 160-200 for wavy/curly hair, 200-220 for thick hair/thick hair. 30 seconds fast heating, save time and perfect styling, can quickly curl your hair, and it can last all day. Safe and reliable useThe electric curling brush automatically shuts off after 60 minutes of use, safe and energy-saving. 100-240 dual voltage is suitable for all parts of the world and international travel.