Philips Sonicare ProtectiveClean 5100 uses unique sonic technology which drives fluid deep between teeth along with our specially designed brush heads to gently but effectively remove plaque in-between teeth and along the gum line. 2 weeks battery life limiting the need for frequent charging.Preparation & Usage Simply brush with Philips Sonicare ProtectiveClean 5100 for 2 minutes twice a day for increased plaque removal for healthier teeth and gums in just 2 short weeks vs a manual toothbrush. Achieve healthier gums in just 2 weeks vs a manual toothbrush. Pressure sensor alerts you when are brushing too hard and 3 cleaning modes provide a personalised brushing experience. Smart brush head replacement reminder alerts you when to replace your brush head for effective cleaning, every time. Travel case & bonus brush head