From the makers of the no.1 recommended sonic toothbrush brand by dental professionals, philips sonicare introduces diamondclean, which removes up to 100% more plaque in hard to reach areas vs. A manual toothbrush. Diamondclean also will whiten teeth in just 1 week and promote healther gums in only 2 weeks. This patented sonic technology drives fluid to stimulate the gums through 5 brushing modes: clean, white, polish, gum care and sensitive. The built-in quad-pacer helps ensure thorough brushing throughout the mouth, where you will experience noticeable results and better check-ups in 28 days, guaranteed or your money back. This most advanced sonicare technology comes with a dual charging system which includes a charger glass and usb charging travel case.