【Dual Function】The hair straightening brush is a 2-in-1 styling tool that combines a hair straightening brush and a curling iron in one. Press the on/off button before use, preheat for 3 minutes, create ultra-straight or curly hair with one touch and style it easily and efficiently. 【Intelligent temperature control】The hair straightening brush has 30 temperature control modes, and the temperature is adjustable from 80°C to 230°C, which can meet different styling needs of different hair types. Choose the right setting for your hair type. Fast heating in 30 seconds and no more wasting time in the morning rush. 【Negative ionic hair care】The hair straightening brush has an ionically charged design that helps keep hair silky smooth, repair damage and breakage, and make split ends and flyaways a thing of the past. The 3D bristles and PTC heating technology deliver even heat and reduce heat damage by 50% for a salon-quality finish without frizz. 【Anti-scald design, intelligent shut-off】There is an anti-scald shell around the comb that does not hurt the scalp or hands, so you don't have to be careful when styling your hair. In addition, the 10-minute automatic shut-off protects you and your family from accidental burns. 【Portable and user-friendly】The negative ion heat comb weighs only 0.7 lbs, making it more convenient to use and perfect for travel. 360° rotatable cord The 360° rotatable cord on the smoothing brush does not get tangled and allows you to move and rotate the negative ion smoothing brush move and rotate so that it wraps around the back of your head. Automatic shut-off: The comb heats up in 3 minutes and automatically shuts off after 10 minutes, even if you forget to unplug it. 30 temperature control modes (80℃-230℃) - Suitable for all hair types. Select the appropriate setting according to hair quality to protect hair from damage. Anti-scald design with 360° rotating cord. These features make the styling process more flexible and safer. Enjoy more of your look. PTC heating & 3D brush teeth - The 3D brush teeth of the hair straightener with PTC heating technology deliver even heat and reduce heat damage. 2-in-1 hair straightening brush and curling iron – Combines a curling iron and a straightener in one brush with heat-resistant teeth for ultra-smooth styles with easy application.