ABHI Ionic Hair straightener The ionic hair straightener brush creates healthier silky hair by upgrading the latest ion technology. During the styling process, it releases more negative ions and instantly penetrates the cuticle of hair, help to moisturize from the inside out, which effectively reduces thermal hurt to the hair. The extra ionic can deeply repair damaged hair and split ends, help you create frizz-free straight hair, making hair silky and shiny. USB Charging Built-in 5000mAh lithium battery, USB charge cable included, 3 hours fully charged time can work for up to 45 minutes. Anti-scald & Auto-off The straightener brush provide heat resistant protective plate and anti-scald comb teeth with a built-in temp lock, can directly touch skin and ensure at a constant temperature. As a built-in safety feature, will automatically turn off after 20 minutes of idle time to ensure your safety. Temperature Choice For Slight or Damaged Hair: select 320°F, hold the hair straightener with hand for 8s, then comb down. For Soft Hair: select 356°F, hold the hair straightener with hand for 12s, then comb down. For Strong Hair: select 392°F, hold the hair straightener with hand for 16s, then comb down. Hair Straightening Step Turn on the hot brush and choose the right temperature. The thicker the hair, the higher the temperature setting should be. Divide the hair into sections. The number of parts will depend on the thickness of the hair. Place the straightener as close to the root of the section as possible. Comb straight down and let your hair go through it. Run the straightener on this section several times. Note Before using this 2 in 1 straightening & curling brush, it is best to comb your hair first to ensure that it does not become tangled.The comb will turn off automatically after 20 minutes to ensure safety for you and your family. Lightweight and travel size that can easily fit in your pocketbook or handbag and take with you on a trip. 3 levels of heating temperatures 160°C-180°C-200°C, can be chosen to fit various hair conditions such as soft, rough, thick hair, let you become beautiful in shortest time. But if your hair is too much or too hard, choose B09NPXH57B hair straightener iron instead of hair brush. MCH ceramic heating components, 3 levels temperature and thermostat control, fast heat up provide quick heat and especially even heat distribution that easily turns curly hair into straight hair in just minutes, while also keep constant even heat to prevent hair damage. USB rechargeable, 3 hour charging, the 5000mAh battery can provide 45 minutes of long use time. Cordless hair curler is without cable restraints, you can create smooth and straight natural hair anywhere. This ABHI hair straightener brush adopts dual-layer 3D teeth design that helps straighten hair natural. Want straightening your hair completely, hold your hair straightener brush and stay on hair for more time or choose high temperature straightener with cord.