展开Unique Design - New sleek and innovative design which makes our power toothbrush a step above the rest. Comes in 3 brushing modes depending on your sensitivity to your gums. Ultrasonic Technology - Built-in UV sanitizer is designed to kill 99.9% of bacterium and germs on the brush heads. Remove & pulsates to break up 300% more plaque along the gum line than a regular manual toothbrush to improve oral health. Highly Effective - 40,000 sonic strokes per minute to effectively remove plaque without irritating your gums. It is ideal for those hard-to-reach areas and removes even the toughest stains to leave your teeth naturally whiter! The system includes 12 bonus brush heads- that's 3 years worth of brush heads based on dental professional recommendations to replace your brush head every 90 days. 3 Optional Modes - Clean/Normal, Soft, or Massage. Meet different purposes and preferences. No matter sensitive teeth or bleeding gums, you can find one mode that’s suitable for you! 2 Minutes Smart Timer - Our tooth brush has a 2 minute timer with a 30 second vibrate alert in order to remind you to brush a different quadrant of your mouth and helps you form a good brushing habit recommended by dentist.