31,000 brush strokes per minute. Recharge indicator. Easy-start. Removes up to 6x more plaque than a manual toothbrush. No. 1 recommended brand by dental professionals. The Philips Sonicare difference: Patented sonic technology. Philips Sonicare uses dynamic cleaning action to gently and effectively reach deep between teeth, for a superior clean you’ll see and feel. 2 Series Plaque Control offers you superior plaque removal at the push of a button.