Only used once! *Hair straightener with a built-in comb. *20-sec fast heating *5 temp settings *Anti-Scald * Pretty straight hair with 3d denser teeth ①3d teeth - Tymo ring hair straightener brush adopts 3D teeth design that helps straighten even the root of the hair to get a completely straight hair look. ②Denser pitch - Unlike the other bristle brush, the 0.09-inch denser pitch increases the contact area between the teeth and hair, ensures all hair can be heated and closed to the teeth surface tightly, straightening your hair completely. * Save half time with fast heat & large area ①PTC heat tech - TYMO hair straightener adopts PTC (Positive Temperature Coefficient) heating technology, quickly heating up to 210℃ within 20 seconds. ②20% Larger Heat Area - Thanks to the larger heating area, more hair can be covered and heated fast and evenly by once comb, greatly saving your styling time. Ideal for a morning rush, quick makes up before going out. ③The lightweight design and dual voltage makes it easy to carry around. * Safe protection with anti-scald & auto-off ①Anti-scald - TYMO patented V-shape flame-retardant plastic frame protects you from every angle. ②Auto-off - The comb will turn off automatically after 30 minutes to ensure safety for you and your family.