Pretty straight hair with 3D comb teeth, KD680 straightening brush adopts 3D teeth design which helps to smooth even the hairline to achieve completely straight hair look Smooth and shiny hair with ionic coating, the KD680 straightening comb adopts ionic coating on the heating surface to keep the hair shiny and healthy. During the styling process, millions of will be released with the heat and form a protective lay Save time with fast heat and large area, PTC heat technology - KD680 hair straightener adopts PTC (PositiveTemperature Coefficient) ceramic heating technology, quickly heating up to 200C in 30 seconds. Hair care at constant temperature. Ideal for Safe protection with anti-scalding and auto-off, anti-scalding - via a V-shaped flame retardant plastic frame protects you from all angles Temperature Settings, The 5 temperature settings (120C- 200C) are customized for all hair types. No matter what type of hair you have, you can find the right setting