5 Brushing Modes & 3 Switch Dynamics : Our electric toothbrush have 5 Brushing Modes,Clean,White, Refresh, Gum care, Polish. 3 Switch Dynamics,low/medium/high cycle. Meet variours of demands for teeth and gums. Customize your experience according to your teeth condition, keep your teeth healthy and strong for a lifetime. 2 Min Smart Timer : Built in 2 minutes timer pulse every 30 seconds to remind you shall move to next quadrant of the mouth to ensure a thorough cleaning, which is highly recommended brushing way by dentists. IPX7 Waterproof : Water-resistant of this sonic electric toothbrushes up to IPX7. The entire toothbrush can be rinsed with water, safe and convenient. The charging interface at the bottom of the electric toothbrush is added with water-proof seal cover, which not only form beautiful appearance, but also avoid the accumulation of water at the bottom and charging port.