IONTEC: Bring out shine. Beat static & frizz. The Braun Satin Hair 7 brush with IONTEC is unique. While others have ions only buried in their material, the Satin Hair 7 brush actively produces them in millions & pushes them out through the little green jets. You can even hear it work with a quiet hiss. All those ions infuse your hair & beat static & frizz for instantly visible shine. & they help transport the moisture of the surrounding air back into the hair. Which is a very healthy thing to do. Detachable cushion for easy cleaning Simply remove the cushion pad & easily clean it under running water. It keeps your brush in pristine state for years of use. Natural bristles For exceptionally gentle brushing of fine to medium hair. Incredibly gentle on hair, the natural bristles glide smoothly & effortlessly through the hair. Travel-lock. Active ions to go, please. Taking your brush anywhere means taking instant shine anywhere. Be it a great night out or a long day at work, you can touch up with the push of a button & a few strokes. The automatic travel lock protects the ion output nozzles while the Satin Hair 7 brush is in the purse.