Waterpik Sonic-Fusion 2.0 Professional Flossing Toothbrush - Introducing the world's first electric toothbrush with a flossing feature - now better than ever! The Sonic-Fusion 2.0 has up to 2X the bristle tip speed compared to the original Sonic-Fusion. With just one touch of a button, you can now brush, water floss, or do both at once! The advanced sonic toothbrush has Waterpik water flosser technology built-in, providing a complete clean in one step.