Mueller Sonic Rechargeable Electric Toothbrush With Dentist Recommended CrossClean Technology, Replacement Brush Heads, 5 Modes, IPX7 Fully Waterproof, Built-in Auto Timer 3D Cleaning Action oscillates, rotates, and pulsates to break up and remove plaque Up to 10 times more plaque removal* - We use our newest CrossClean sonic technology to sweep away plaque and give a deeper clean. No other brush on the market can compete with our 66, 000 brush movements per minute Up to 100% less stains in just 3 days* Up to 7 times healthier gums* * than a manual toothbrush.