We have an impressive 5 smart performance modes, the Sonic XP Toothbrush delivers an impressive forty thousand tailored brush movements per minute. Each toothbrush head is fitted with DuPontTMbristles combined with W-shape Sonic XP Wave Surface Design to fit the contours of teeth and gums plus an X-shape Polishing Element to remove stains. The result: deep cleaning that is kind to gums, tough on plaque and perfect for whitening.