Revolutionary product, combines comb with a hair straightener 100% tourmaline ceramic heating plate, stable heating there are 66 red silicon dots on the top of comb all welded frame, piano coating professional 2.5m no-tangle 360 degree swivel cord to avoid the wire twining. Operation instructions:- using different settings of using fast hair straighter can archive different temperature.fast hair straighter with an eleven elevator button,every touch can change 5 degree celsius.we recommend that you begin to choose the highest amount,than according to hair to te reduce the temperature level. 1.thick dense hair generally choose a higher temperature 210-230 degree celsius . 2.more generally,hair hanging in the temperature 210-190 degrees 3. Comparison the fine hair selectable temprature 200-170 and choose low temperature above a poem molding may slightly slower please use the power button to bower on hold for 3 second to boot ,press 3 seconds off. Fast hair straightner use a different directions for personal use with personal habits.