Say goodbye to plaque: thanks to the toothbrush head's flexible design, it removes up to 10 x more plaque from hard-to-reach areas** Adaptive cleaning technology: you get a personalised clean every time you brush with our adaptive cleaning technology. BrushSync mode pairing: automatically selects the optimal brushing mode and intensity level for your Philips Sonicare electric toothbrush. Philips Sonicare technology: our advanced sonic technology pulses water between teeth while brush strokes break up plaque and sweep it away.* Includes: 4 C3 Premium Plaque Defence brush heads.