1.Acoustic vibration clean technology:Sonic toothbrush around on 38000 strokes/minute drive fluid deep between your teeth and along the gum line for exceptional cleaning and removing up 100% plaques, whitening your teeth and improving your oral health in two weeks better than a manual toothbrush. prevent the gum recession.
2.4 HIGH-PERFORMANCE BRUSHING MODES- Clean(gentle), White(strong), Polish(strong invert frequency) and Milder(gentle invert frequency) to suit different conditions of teeth of gums, also 3 intensity modes,so you can choose different modes according to your preferences and dentist's recommendations.
3. One 10 hours full charge last 60 days of normal usage (2 times per day), the largest battery capacity on the market with low battery reminding and automatically cuts off power after full charge. Also, IPX7 waterproof to be used at bath and shower. No worry about the water would enter the charge ports to short the battery life, More safer than USB charger.