Features: 1. Built-in 2000mAh high-capacity rechargeable battery, can be used 2-3 times on a single charge. 2. It releases 50 million negative ions during the straightening process to reduce hair static and frizz for a smooth, shiny finish. 3. It uses constant temperature technology to reduce scalp damage caused by sudden cold or heat. 4. Different types of comb teeth are used inside and outside to achieve anti-scalding effect. 5. The temperature can be freely selected, 160℃ is suitable for fine and soft hair, 180℃ is suitable for normal hair, and 200℃ is suitable for thick and hard hair. 6. Equipped with a temperature display to control the temperature in real time. .