It would interest you to know that some, if not all, NuMe curling wands are smart tools because they somehow use advanced settings to ensure maximum performance. For instance, they have an LED Display to monitor temperature changes, which is quite good; however, there is something else â an automatic shutoff feature. In most cases, if a curler has been âONâ for about 60 minutes, the wand automatically shuts off itself to save power. It is indeed a smart device, considering this ability.