Have a predecessor of this flat iron. The smoothing properties are very good. Want the technical details now do not evaluate, since I to this model generation can say little. But I can say that the Teflon fabric (whether it is so gentle on your hair can be hard to tell, also comes to the chosen temperature and the hair structure, but even harms way or the other) contaminated with the time and is very difficult to clean. Remnants of styling products / heat protection sprays accumulate in the "pores" of the fabric and can not get out as loose as well. Through the dark color you do not see this, but over time verrringert so the performance and is an unpleasant odor of ever new "burned" particles of dirt on the hair over. Get me probably a new flat iron set that has smooth panels ...