【Negative Ion Hair Care】 The POLENTAT cordless heat brush is equipped with a million-level negative ion generator, which neutralizes positive ions like static electricity while smoothing out bedhead, frizz, and waves, protecting the cuticles from damage and giving the hair moisture and shine. Furthermore, the heat pins are ceramic-coated and arranged in a high-density pattern to firmly grip the hair ends, yet they don't snag the hair when combing, minimizing friction damage. 【5200mAh Large Capacity & Convenient Type-C Charging】 Equipped with a 5200mAh large-capacity battery, it can be used for up to 60 minutes. It also supports Type-C charging, making charging easy and convenient. Furthermore, it is compatible with overseas use, so you can use it with peace of mind even when traveling. Note: For use and travel abroad, you must follow airline and international regulations. Conditions and regulations vary depending on the airline and country, so it is important to check the specific information regarding the airline and destination. 【3-Level Temperature Adjustment & Digital Display】 It has a digital display that allows you to freely adjust the temperature. With three precise temperature control levels, it caters to various needs and corresponds to different hair types at different temperatures. 160° is suitable for soft hair, 180° is suitable for normal hair, and 200° is suitable for hard hair. It also has a battery level check function, eliminating the worry of not being able to check the remaining battery life.