Specifications Removes up to 7x more plaque vs. a manual toothbrush Pressure sensor protects teeth and gums from excess brushing pressure BrushSync replacement reminder Quadpacer and Smart timer helps ensure dental professional recommended 2 minute brushing time and encourages brushing in each quadrant of the mouth Batter charge indicator light let's you know when to recharge; 2-week battery life Model # - HX6809/83, HX6402/85, HX6809/81 Includes: 2 Philips Sonicare 4300 handles 2 chargers 2 Optimal Plaque Control brush heads 1 tongue cleaner 2 travel cases