[Double ion generator for healthy and silky hair] This straightening brush seals the hair cuticle, reduces split ends and tangles, and leaves your hair looking naturally smooth, silky and shiny[Temperature lock and auto shut off] Press and hold the + and - adjustment keys for 3 seconds to lock the temperature. Always ensure maximum safety and optimum performance. As a built-in safety function, if not in use, the hairbrush will automatically turn off within 60 minutes.[High Density Curly Hair Nano Comb Brush] Easily transform curly hair into straight hair in minutes The combs not only smooth the hair, but also provide a massaging effect, benefit the scalp and stimulate the hair follicles.[More convenient to use, more convenient to travel] The power cord can be rotated 360 to straighten the hair at any angle. Most importantly, the voltage of the hairbrush is 100-240V, you can take it with you and you can achieve silky smooth hair in minutes. ] (Ceramic heater) is the new heating standard for hair devices. What does this mean to you The heating speed is fast, most even in less than a minute, which saves energy, is more durable and lasts longer, compared to traditional straightening brushes, it greatly shortens the overall straightening time.