for thick hair,select higher temperature(210-230)for normal textured hair,select moderate temperature(190-210)for delicate,fine hair,you can select temperature(170-200)select low temperature will be slightly slower to make a hair style.Boot-- Press the power button 3 seconds,and press 3 seconds offWorld First No Burn No Harm 5 Sec.Straighten Iron Comb Launched!It is COMB!comb hair and straighten hair!5 seconds straighten your hair,30 seconds heating0 Burns 0 harm!All the world ladies will be crazy for itAdvantage:No burn:When the comb plate reaches 200 degree,the comb top only 50 degree,that will not burn your skin,and it can help messge your head and relax you.No harm:It produce anion when work,that remove hair static electricity,also anion can combine with air to produce moisture,help nurish your hair*LCD screen display*360 degree rotatable wire.it avoids the wire twiningSpecifications:Voltage:DC110v-220vPower:29WWire length:about 230cmHeating time styling time:30 secondsStraighten hair time:5 seconds.comb it and become straight during 5 seconds.Thermostatic:185 degreeMax temperature:230 degreeMin temperature:80 degree