New version available - ProtectiveClean 4100 White
Patented sonic technology delivers up to 31,000 brush strokes per minute. Features click on brush head system
Two-minute timer helps ensure recommended brushing time
Easy-start feature slowly increases power over first 14 uses making the switch to Philips Sonicare easy.Two-color battery charge indicator lets you know when to recharge. 2 weeks battery life.