Braun Satin Hair 7 IONTEC brush. World’s first brush with active ions. A brush to switch on instant shine. IONTEC: Bring out shine. Beat static and 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 and pushes them out through the little green jets. You can even hear it work with a quiet hiss. All those ions infuse your hair and beat static and frizz for instantly visible shine. And they help transport the moisture of the surrounding air back into the hair. Which is a very healthy thing to do. 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 and a few strokes. The automatic travel lock protects the ion output nozzles while the Satin Hair 7 brush is in the purse. Detachable cushion for easy cleaning: Simply remove the cushion pad and easily clean it under running water. It keeps your brush in pristine state for years of use. This product requires 2 x AAA batteries. Please note this is not a hair straightener.