2-Minute Smart Timer-Pause once every 30 seconds during use. This is a 2-minute intelligent timer to remind you to balance the four areas of your mouth and reach the brushing time recommended by dental experts. The high vibration-sound wave electric toothbrush adopts a powerful electric motor, which can reach 38,000 strokes per minute. Effectively clean teeth and gums. Fast charging and lasting-the charging indicator flashes to remind the electric toothbrush that it needs charging. Brush your teeth for a total of 30 days after being fully charged (2 minutes /2 times/day). IPX7 is waterproof and can be easily washed after each use. Brush head-bristles are made of DuPont nylon, which are soft, wear-resistant and non-absorbent, providing you with a safe and gentle brushing experience. W-wave brush head perfectly fits every tooth and removes stains better. 5 optional modes-Customize your brushing experience with 5 modes: cleaning mode, polishing mode, gentle mode, white mode and eyelash care mode. Five different models are suitable for different tooth and gum conditions, and can even take full care of your sensitive mouth and teeth.