Hair Straightener Brush Ionic Beard Straightening Comb Fast Heated & Anti-Scald 3-in-1 Styling Brush for Home Use (Black) size：25x6cm/9.8x2.4in feature [Quick heat and anti-scalding hair straightening brush] Our hair straightening brush adopts an air sandwich structure. There are 79 PTC ceramic heating plates in the comb teeth, surrounded by anti-scalding comb teeth. The upgraded PTC component of the hair straightening brush can be heated and kept at a constant temperature within 30 seconds, protecting your hair/beard from damage and burns, and making your hair and shiny. [Negative Ion Hair Straightening Brush] This upgraded version of the hair straightening comb uses anion technology and constant temperature function to ensure a healthy hair care and styling experience. The negative ions of our straightening comb penetrate into the core of the hair, the cuticle of the hair, prevent heat damage, reduce protein damage, maintain the natural moisture of the hair, and reduce split ends and knots. Make your hair smoother and shiny! [Temperature lock and automatic shutdown] The straight hair brush adopts a newly upgraded smart chip to always ensure maximum safety and performance. The straight hair brush is locked intelligently for 4 seconds without any action, and automatically shuts off in 30 minutes to ensure safe use. To unlock the keys, double-click the power button within 1 second. [Easy to use and travel-friendly] Our hair straightener adopts a lightweight design and a 360-degree rotating power cord, which can easily straighten hair at any angle. It only takes a few minutes to easily turn curly hair into straight hair! The heated hair straightening brush also provides LCD display and memory functions to facilitate temperature control. Global universal voltage (100-240V), not restricted by region, very suitable for travel and business trips. [Suitable for all hair types] The hair straightener can be adjusted from 120°C/250°F to 230°C/450°F to meet different hair types. Suitable for all types of hair: fine hair, fine hair, bleached hair, dyed hair, thick hair, wavy hair, curly hair, and even rough hair. Hair straighteners can be used for short hair, long hair and men's beard straighteners. A true three-in-one use. The perfect family or friends! Include 1X Straight hair comb