This hairbrush emits negative ions that counteract the causes of static and frizz to leave hair smoother and shinier. A switch in the handle activates the ionizer, whose charge helps neutralize the positive ions in the air responsible for flyaways and frizziness, sealing out moisture, and helping hair cuticles lie flat. The cushioned brush has flexible metal bristles with ball-tipped ends that loosen tangles without tugging, and an ergonomic handle that provides a comfortable grip during styling. Requires two AAA batteries. 10 1/2" L x 3 1/4" W x 2 3/4" D. (1/2 lb.)