Features:Electric one-second power-on, two-speed cleaning mode.2 minutes intelligent timing, 360 degree rotation cleaning.Rotating centrifugal force, let the teeth feel the efficient cleaning force.Rotary brush head black technology, 3600/min high-frequency rotation, intelligent pressure control does not hurt teeth.IPX7 waterproof, the whole body is washable.Long standby time of 30 days, red light charging reminder.