First, this was not the brand Numoya - I received a knockoff brand rather than the Numoya brand I ordered.
Second, There are only 3 temperature settings all of which do not heat hot enough.
Third, the on/off/temperature button is in a really bad location. I kept hitting it while trying to use this heat brush which caused the temperature to reduce every time I tried to pull the brush through my hair.
Fourth, waste of money, I threw it away.
Fifth, lesson learned, if you want the name brand product, don't buy it from Walmart sight unseen.