Unique Sonic TechnologySonic technology can generate special flow cleaning force, driving water gently into the teeth, thus achieving a gentle cleaning effect.Helps Whiten TeethRemoves up to 7x more plaque than a manual toothbrush, help whiten teeth every time you brush for a confident smile.Provides Superior CleanPhilips Sonicare InterCare toothbrush head's, extra-long bristles designed for exceptional cleaning between teeth and braces.Freshens BreathPhilips Sonicare TongueCare+ tongue brush is the only tongue cleaner with Philips Sonicare strength, to clean away bad-breath bacteria with every stroke. 31,000 vibrations per minute break up tongue debris, sweep away bad-breath bacteria. Thanks to Philips Sonicare technology, your tongue will feel cleaner and your breath will be fresher.Quadpacer 30-second Timer30 seconds interval timer indicates when you have completed each quadrant of your mouth and signals for you to move on resulting in more consistent cleaning throughout your mouth.Smart Timer2-minute timer on this Philips Sonicare electric toothbrush helps ensure dental professional recommended brushing time.EasyStart FeatureThe Easystart feature adjusts the power level of the toothbrush during the first 14 uses, helping you get used to the Sonicare, making it easy to transition from a manual toothbrush to a sonic toothbrush.Better Access To Back TeethA slim, curved brush head cleans back teeth and hard-to-reach areas more effectively.