PRODUCT INFORMATION Easy-start This Sonicare model comes with the Easy-start feature activated. The Easy-start feature gently increases power over the first 14 brushings to ease into the Sonicare experience.. Easy-start can also be switched off. To deactivate Easy-start: Press and hold the power on/off button for 2 seconds. You hear 1 beep to indicate that the Easy-start feature has been deactivated. To activate Easy-start: Press and hold the power on/off button for 2 seconds. You hear 2 beeps to indicate that the Easy-start feature has been activated. Smartimer The Smartimer indicates that your brushing cycle is complete when it automatically turns off the toothbrush at the end of the brushing cycle. Dental professionals recommend brushing at least 2 minutes twice a day. Quadpacer The Quadpacer feature ensures that you brush all four sections of your mouth evenly and thoroughly. You will hear a short beep and notice a brief pause in brushing action. This is the signal to move to the next section of your mouth. The Quadpacer feature on this model has been activated. To deactivate or reactivate the Quadpacer features: Place the handle with a brush head attached on the plugged-in charger. Press and hold the mode button for 2 seconds. You hear 1 beep to indicate the Quadpacer has been deactivated or you hear 2 beeps to indicate the Quadpacer has been activated.