Innovative sonic technology cleans your teeth better for a brighter, whiter smile. 40,000 micro-brushes per minute, this electric toothbrush gives you a thorough cleaning while making reduced noise. 5 personalized modes not only take care of your various demands, but also add some fun to your daily routine. With ADA Accepted, Fairywill always works hard to offer users the highest level of quality and care. Charging features: Charging for 4 hours is enough for 25 days.