The Waterpik Cordless Water Flosser WP-360 is a portable unit with rechargeable battery. Tested and trusted it is the first product in its class accepted by the American Dental Association (ADA). The easy and more effective way to floss the Waterpik Water Flosser cleans areas that traditional brushing and flossing miss. And it removes hard-to-reach bacteria and debris that can cause bad breath gum disease and tooth decay. For a customized clean choose between the High-Pressure Classic Jet Tip (for general use) or the Low-Pressure Classic Jet Tip (for gentle cleaning).