This is the only ultrasound toothbrush that instantly kills bacteria on teeth, the tongue, and below the gumline. A microchip inside the toothbrush head creates safe ultrasonic impulses that destroy bacteria, eliminating the germs that cause gingivitis, periodontitis, and bad breath. The ultrasonic waves even eliminate bacteria down to 12 mm below the gumline and remove tartar and plaque from hard-to-reach areas. Unlike electric or sonic toothbrushes that clean through mechanical, abrasive friction that can damage enamel and gums, this 100% ultrasound toothbrush does not vibrate and simply rests on teeth, gums, or the tongue to clean without causing damaging friction. The ultrasound helps remove wine, coffee, and other stains to whiten teeth without harsh abrasives and it is safe for use on fillings, bridges, and crowns. Includes two brush heads, and charging base. Provides up to 15 days of brushing after a 24-hour charge. For use with regular toothpaste or specially formulated toothpaste available below. 10" H x 2 3/4" Diam. (1 lb.)