Three-in-One Multifunctional Hairstyling Tool: The curling brush serves multiple purposes, allowing for various hairstyles. It can be used for both curly and straight hair, or simply as an ordinary comb for long hair. Note: It is not a hot air brush but a curling iron. Anti-Scalding and Safe Design: Nylon bristles and a thermosetting cold tip ensure safe usage by preventing heat during styling. Negative Ion Healthy Hair Technology: The ceramic and tourmaline barrel of the curling iron emits millions of negative ions, promoting healthy and soft hair. Adjustable Temperature for All Hair Types: Temperature-controlled LCD digital display allows adjustment from 130 to 220 degrees Celsius: 130-160 degrees: Fine hair 160-200 degrees: Wavy/curly hair 200-220 degrees: Thick hair Heats up quickly in 30 seconds, saving time and facilitating perfect styling. It ensures quick curling that lasts all day. Safe and Reliable Usage: The electric curling brush automatically shuts down after 60 minutes of use, ensuring safety and energy-saving. It operates on 100-240 volts dual voltage, suitable for worldwide use and international travel.