New version available - ProtectiveClean 4100 White Removes up to 6x more plaque than a manual toothbrush. Features click on brush head system Sonic technology: With up to 31,000 brush strokes per minute, dynamic fluid action helps clean between teeth and along the gumline Smartimer encourages 2 minutes of brushing as recommended by dentists Easy-start feature slowly increases power over first 14 uses making the switch to Philips Sonicare easy Description change to: Remove more tooth-decaying plaque and avoid cavities with the philips sonicare hx6211/04 2 series plaque control rechargeable toothbrush. The snap-on proresults plaque control brush head features curved bristles to match the shape of your teeth for a superior clean that removes up to 6x more plaque than a manual toothbrush. The easy-start feature slowly increases the power of the brush as you get used to the sonicare experience and the smartimer encourages a full 2 minutes brushing time. An ergonomic handle with intrinsic grip makes it easy and comfortable to hold the brush, and the two-color battery charge indicator lets you know when it's time to recharge. This kit includes 1 philips sonicare 2 series rechargeable toothbrush, 1 proresults plaque control brush head, and 1 charger. Power - voltage - 110-220 volts. Manufacturer's Notice *******IMPORTANT TIPS:********* Consumers must allow the product to charge a full 24hours in a working outlet. As its charging a battery light will indicate when the handle is fully charged.