Plaque removal Up to 10x more plaque removal with the C3 Premium Plaque Defence brush head. Pressure Sensor Alerts you when you are brushing too hard. Progress report By connecting your brushing experience to the Sonicare app, a personalized Progress Report helps you stay on track, to see how much you've improved over time. Brush Head Replacement Reminder Alerts you to replace your brush head when it is no longer performing optimally. Smart Brush Heads Look for the symbol on replacement brush heads to ensure compatibility with the replacement reminder technology. BrushSync Technology Uses microchipped-enabled technology to detect and synchronise the smart brush head with the smart handle enabling Smart mode pairing. All you need to do is to press the power button. 4 cleaning modes, 3 intensities Choose between Clean, Deep Clean +, Gum Health & White+ cleaning modes and three intensity settings to personalise your brushing experience. Charging Travel Case Take your Philips Sonicare wherever you go with its own travel case. Additional Features: 1 x Premium Plaque Defence brush head included Charging base comes with a two-pin plug 2 weeks battery life limiting the need for frequent charging Quadpacer & Smart time alerts you when to move on to each section of your mouth and when your total time is up.