Flossing technology is built into the patented brush head- allowing you to use one device for both brushing and flossing. SONIC-FUSION 2.0 features high and low brush settings, quiet operation, and LED mode indicator lights for ease of use. This professional model comes with 2 flossing brush heads (1 full-size, 1 compact) with brush head covers, a premium toothbrush case, a 2-minute brushing timer with 30-second pacer, global voltage, and a removable water reservoir with 60+ seconds of flossing time. Clinically proven up to 2X (twice) as effective as traditional brushing and flossing for reducing plaque in hard-to-reach areas and improving gum health.*