How do you detangle, dry, style, and volumize your hair—all with one styling tool? The Knot Dr. knows. Equipped with innovative detangling technology to smooth away snags, and ionic technology to reduce frizz, the Knot Dr. All-In-One Dryer Brush is all you need to create salon-caliber styles quickly and easily. Ideal for all hair types, with two heat settings and a cool setting, plus a volumizing attachment, this styling essential is the cure that banishes bad hair days forever.