Fast Straightening Hair - Using PTC heating technology Ionic hair straightener comb can quickly reach 320°F within 30 seconds. With a larger heating area, more hair can be covered and heated by one combing and greatly save money and styling time in the salon, never delay your work or appointments!Wider Temperature Ranges with Screen Display - 9 heating modes (266℉-410℉), which can heat up quickly. The large LED screen display allows you to directly see the temperature in use, making it easier to match your hairstyle. Whether your hair is sparse or thick, you can freely choose the most suitable temperature for straightening or curling.Anti-Scald & 30 Mins Auto Off - The ceramic straightening comb is designed with a V-shaped anti-burning shell, which can prevent hair from scorching or damage, protects you and your family from all angles. Our hair straightening comb has a 30-minute auto off function to prevent potential safety hazards caused by forgetting to turn off the plug.Universal Voltage & Travel-Friendly - Fast heating hair straightener brush comb has an international voltage of 110-240V. No matter where you go, you can use the straightening brush in a professional salon. Portable straighten your hair easily at any angle with the flexible 360° swivel power cord.Negative ion Coating for Silky Hair - The enhanced ceramic ion hair brush releases negative ions on the heated surface to keep hair moisturized, smooth, shiny and frizz-free. Millions of ions form a protective layer on the hair, which can deeply repair damaged hair, reduce split ends and knots, nourish your hair while maintaining its beauty!