It has a ceramic barrel and ionic technology that'll leave your hair smooth and shiny, plus it has an ergonomic grip that won't tire your hands out. I've used this myself and it really works!
Get it from Amazon for $39.99 (available in two sizes: 1-inch and 1.5-inch).
Promising review: "I am no professional hair stylist, nor do I have time to do my hair everyday (mommy of two), but I must say this blow dryer curling brush makes getting ready so much easier. It's fairly simple to use. I like my hair to have a lot of volume (I have thin hair) and my layers to show (please excuse my dead ends) so this look is easy to achieve. I just sectioned my hair in small pieces, used this tool from my roots to the tip, then from the tip curled up (inwards) and rolled the brush around and out to keep the curl. Added a lot of volume and a nice wave to the tips. I would recommend this product to anyone looking for a nice easy blowout! I also used John Frieda Volumizing spray to obtain this look!" —C