Sonic technology combined with our brush action gently removes stains for naturally whiter teeth every time you brush. Enjoy a brilliant smile with this Philips Sonicare toothbrush. Advanced sonic technology gently removes stains and makes your teeth naturally whiter. Powerful bristle vibrations create microbubbles deep between your teeth for a refreshing clean. Plus, the built-in pressure sensor protects your gums by reducing toothbrush vibrations if you brush too hard. You can switch between two modes - Clean and Sensitive - for a comfortable clean. BrushSync tech reminds you when it's time for a new brush head. The SmarTimer and QuadPacer help you brush evenly for the right amount of time. The battery lasts up to 14 days before you need to recharge.