RECHARGEABLE CORDLESS WATER FLOSSER: Waterpik Cordless Pearl will help you maintain healthier gums and cleaner teeth whether you are at home or on the go. It features 4 tips for a variety of dental needs, a rechargeable battery, and portable design. EASY TO USE: An ergonomic narrow hand grip and 360-degree tip rotation provides easier flossing of all areas, even back teeth, plus Cordless Pearl features our quiet water flossing technology. DENTIST RECOMMENDED: Waterpik is the #1 water flosser brand recommended by dental professionals and the first water flosser brand to earn the American Dental Association (ADA) Seal of Acceptance for safety and effectiveness. KEY FEATURES: 4 tips, 2 safe and effective pressure settings, 7oz removable reservoir (top-rack dishwasher safe) for up to 45 secs floss time, NiMH battery, USB charger (wall adapter not included), and 360 tip rotation. Not for use in the shower. PROVEN EFFECTIVE: Waterpik water flossers use PrecisionPulse technology to deliver a combination of water pressure and pulsations, removing up to 99.9 percent of plaque bacteria from treated areas that cause gingivitis, cavities, and bad breath. WARRANTY AND SUPPORT: Backed by a 2-year limited manufacturer’s warranty, see manual for details. Waterpik’s Colorado support team is available to help with any product questions or needs.