From yahoo.net:

(Note from Mark: One of the big problems with electronic toothbrushes have always been the buildup of debris on the charging bases. Oral B has a clever design on this new toothbrush, which allows you to remove the small charger from inside the base and then the entire base unit can be put in the dishwasher. Really a smart, smart product.)

Clinically Proven, Dentist Preferred, Removes plaque with 40,000 in-and-out pulsating movements per minute, while the side-to-side oscillations whisk it away. Prevents build-up of stains and whitens teeth; helps prevent gum disease, the leading cause of tooth loss

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