<p>Battery operated, portable, and waterproof, the Waterpik Cordless Express portable water flosser oral irrigator WF-02 in Black is designed for travel anywhere, use in the shower, or for smaller bathrooms. Tested and trusted, Waterpik is the #1 water flosser brand recommended by dental professionals.</p><p>From the first brand in its class accepted by the American Dental Association (ADA) for safety and effectiveness, the Waterpik Cordless Express water flosser removes up to 99.9% of plaque and is clinically proven up to 50% more effective than string floss for improving gum health. The Cordless Express provides a unique combination of water pressure and pulsations to clean deep between teeth and below the gum line, removing harmful bacteria and debris that traditional brushing and flossing can't reach. </p><p>An easy and effective way to floss, the Waterpik Cordless Express portable dental water flosser features two pressure settings and is a great solution when you want the convenience of water flossing in the shower or on the go.</p>