Lightweight, cordless and easy to use, the Waterpik Cordless Plus Water Flosser makes it easy to maintain healthier gums. It is a great solution for those who prefer the convenience of a cordless electric Water Flosser. The Waterpik Water Flosser is clinically proven to be more effective than traditional dental floss and Sonicare Air Floss (Model HX8181) for reducing plaque and gingivitis. And the Orthodontic Tip combined with the Water Flosser is clinically proven to be up to 3X as effective as dental floss for removing plaque around braces and other orthodontic appliances. Clinically proven significantly more effective than dental floss and interdental brushes. Advanced ergonomic flosser design with non-slip grip and easy-fill reservoir and dual pressure control system for gentle-to-deep cleaning. Rechargeable and portable flosser, great for travel and small spaces.