I have the Braun Satin Hair 7 curler with CU 710 Iontec technology, but unfortunately he has not ordered fulfills the function which I had hoped for. Since this unit can be set to a maximum of 200 ° it takes forever long until the curls are formed. I have then bought another product that is up to 230 ° hot and so it does not take so long until the curls are formed. Unfortunately, the morning is not always so much time for the hair so it has to go with me always fast, and thus this curling iron comes from Brown out of the question. But otherwise good workmanship.