Powerful Sonic Toothbrush Up to 50,000 strokes per minute, dynamic fluid action effectively helps clean between teeth and along the gumline, The toothbrush remove up to 100% more plaques and stains vs. manual toothbrush USB Charging & Long Battery Life Rechargeable toothbrush compatible with any charger or equipment with a USB port , with Short-circuit/overcharge/overheating protection. Safe and Easy 100% Waterproof toothbrush to be used at bath and shower. With 6 brush heads provide a deep cleaning.