The Waterpik Cordless Advanced water flosser is a great solution when you want the convenience of cordless water flossing. Rechargeable, portable, and with an extra quiet design, it's perfect for use in smaller bathrooms or for travel. Cordless Advanced includes 3 pressure settings allowing you to personalize your water pressure intensity. It also features a waterproof design for use in the shower, 360 tip rotation, 4-hour rapid charge, and an easy to fill reservoir. The Waterpik Cordless Advanced water flosser removes up to 99.9% of plaque bacteria that causes gingivitis, cavities, and bad breath from treated areas and is clinically proven up to 2X as effective as string floss for removing bacterial plaque and improving gum health. Waterpik is the #1 water flosser brand recommended by dental professionals, and the Waterpik Cordless Advanced water flosser is accepted by the American Dental Association (ADA) for safety and effectiveness. Backed by a 2-year manufacturer's limited warranty, see product manual for details.