1Straight hair and protect hair, straight hair comb with anion function, straight hair comb, 3 minutes to finish hair modeling. 2Quick tie knot, quickly straighten without messy hair, easily yo comb hair smoothly. 3Release anion, prevent static electricity from happening and smoothing hair scale, easy to care your hair. 4Intelligent constant temperature regulation, LCD screen with 3 gears adjustment. 5Intelligent constant temperature, safe and antiscald, reliable in use, suitable for home and salon use.