Product parameters Product name: Ultrasonic infrared cold perm hair straightener ModelD614SD133YH454083 Applicable hair: wet and dry Thermal conductor material: electrical stone ceramics Best styling time: 1-2 minutes Working voltage: 110-230V Heating plate length: 9cm This is the product to deliver and maintain the Unprecedented Stunning Gorgeous Hair.This is not a hair straightener or flat hair iron, but a next generation technology for hair beauty, which is very successful and popular in Japan & Italian markets.The ultrasonic and infrared hair straightener provides the superbly nonabbrasive cleaning of the hair cuticle layer, and super changes the proximal scale with quintessence, completely rejuvenize the degra.Product Feature:1.High-Tech for professional use2.With Ultrasonic vibrations and infrared rays3.Innovation in hair care technology gives hair a healthy finish4.Sleep mode automatically switches the device off5.360 degrees swivel cord prevents tangling and damage6.Accelerates treatments' absorption7.Seals keratin and amino acids into hair's cuticle8.Rejuvenates dyed hair9.Closes the pores and smoothes hair cuticles10.Prevents hair loss11.Restructures hair's fiber, sealing its endsPackage including:1* Hair StraightenerHow to use it?1)Put impurity eliminating protein on the scalp and hair,massage it until foam appears so as to eliminate the impurities.Then rinse clean with mild warm water.2)Make the hair about 80% dry with hair dryer.3)Separate the hair into several parts.4)For haircare with nutrition,put on haircare cream,Such as negative ion quintessence liquid mixed with negative ion restoring oil-baking cream,some other haircare craam that has abundant nutrition for the hair,etc,than massage it even.for hairdying,put on hairdying treatment cream on the hair,massage it even.5)Use the ultrasonic and infrared haircare straightener to do the hair one part after another about 3-5 times reccommended in the same way as using hairstraighteners until the nutrition or the treatment cream is evenly absorbed.6)Rinse the hair clean with mild warm water and dry the hair.7)Clean the haircare straightener with the plates a little slanting down.