Powerful Rechargeable Ultrasonic Electric Toothbrush

About item:
Powerful cleaning up to 41000 strokes per minute
Gently and effectively reaches deep between teeth and along the gumline
2 minutes auto timer, 30-seconds intervals to ensure thourough brushing in four quadrants
IPX-7 waterproof to be used at bath and shower
Long battery Ilife, supported by USB charging , safe and easy auto shut off after full charge , compatible with any power source
Tooth-waved bristles made with Dupont nylon , to suit teeth topography for through cleaning of gums and hard to reach areas