Sdida Hair straightener brush is designed for easy hair caring. It is a technology breaking product with innovation. 3 in 1 function: Ceramic Iron Straightener + Detangling Brush + Anion Hair Massager The Sdida hair straightener brush gives quick professional result of silky straight hair in minutes that you dreamed of, allows you get ready quickly for going out in rush morning hours, instead of wrestling with the blow dryers day after day. This hairbrush for straightening hair leaves your hair silky, straight and smooth from the very first stroke. It’s heat up to 365? (180?) in a minute, max 450? (23?) , auto keep constant temperature at 365 ?(180?), your hair will be basically settled in 8-10 seconds. It emits rich negative ions while working, to moisturizing and hydrating care your hair, helps straighten hair instantly while leaving behind a healthy shine. US safety Plug,Short-Circuit Protection, Leakage Protection, Auto shut-off protection if NOT IN USE for 60 minutes. Dual voltage operation support: 110V~240V, Travel International use:need an extra international power plug adapter Specifications: Auto constant temperature at 365? for delicate colored fine hair; Customized set 410? for natural texture hair; Customized set 450? for thick or wavy hair; Centigrade to Fahrenheit convert: press ‘+”-‘at same time Helpful Hair care tips: use Moroccan oil or Agam essential oil hair treatment (Not Included with the package) with Possiave Hair straightener brush to message your hair will improve Frizzy Dry Unmanageable hair effectively.