Electric Toothbrush Rechargeable Waterproof Whitening Teeth Cleaning 8 Brushes High-Quality ADA Accepted; One 4-hour charge last 30 days 5 Different Cleaning Modes best for sensitive teeth USB Charging is good for traveling A 2 Minutes Smart Timer with interval pausing every 30 seconds encourages good brushing habits. Attention: Due to the upgrade of Fairywill's official design, you will receive different versions of our black color in a different warehouse with good quality. Sonic Technology With the power powerful ultrasonic cleaning technology you will get A Cleaning That Is So Thorough You Will Feel As If You Just Got Out Of The Dentist's Chair. The W Tooth-Waved Bristles are made with Dupont nylon, to suit teeth topography for thorough cleaning of gums and hard-to-reach areas. A 2 Minutes Timer Built-in 2 minutes smart timer with interval pauses reminding you to change brushing area every 30 seconds to encourage a healthy brushing habit. Automatically shuts off when two minutes is up. IPX7 Waterproof Water-resistant this Model is up to IPX7. The entire toothbrush can be rinsed with water, safe and convenient. Waterproof to be used in bath and shower. ADA Accepted The ADA Council on Scientific Affairs Acceptance of Fairywill 507 Sonic Electric Toothbrush is based on its finding that the product is safe and has shown efficacy in removing plaque and helping to prevent and reduce gingivitis when used as directed. Color Reminder Bristles The brush heads will remind you to replace your brush head through blue indicator bristles. Gentle on your gum and blue indicator bristles fade in color to let you know when it's time to replace the brush head. Fantastic for Travel 4 hours charge for a minimum of 30 days of use, you can bring the brush without a charger when you are traveling.USB charging is safe and easy, auto shut off after full charge, compatible with any charger or equipment with a USB port.