As seen on hair dryers, ';Less Frizz';?

Why does it say on hair dryers less frizz, when every hair dryer is pretty much alike. (the only thing that could be different is if it's lighter, more/less powerful) And typically the ones that say it are MORE powerful so how would it give you less frizzy hair? As seen on hair dryers, ';Less Frizz';?
Different hair dryers use different technology, just like straightening/flat irons. Some will use tourmaline technology, which will emit positive or negative ions depending on the setting, which will cancel out the other ion found in frizzy hair. This is how Thermasilk is heat-activated, for example.