* Generates charged ions that give your hair a thicker/fuller appearance * Detangles hair while stimulating your scalp and improving circulation * Dual-speed massage setting for stress/tension relief * Battery operated Relax and enjoy. Zadro's feelz good massaging hair brush is both portable and compact. The built-in massage technology provides tension and stress relief while giving your hair a thicker, fuller appearance. The dual-speed vibration provides a relaxing massage to relieve tension in your head, neck, shoulders and more. Using the massage mode while brushing your hair generates charged ions to help detangle your hair and add both volume and body. The top of each bristle is coated with a soft nodule to gently stimulate your scalp and improve circulation. The front of the brush head is firm with just enough give to contour the shape of your head while the back of the brush head features circular nodules that can be used to massage any part of your body.