Lange Le Duo Hairstyling tool is a curling iron and flat iron in one It’s great for anyone who has trouble curling their hair with a regular curling iron or anyone who wants two tools for the price of one. The built in fan helps set the curls but it can be turned off as shown in the video. Fully functioning as the video shows and only used a small amount of time. I have a shorter haircut now and have no need for it anymore but it was a wonderful tool when I needed it!