The Waterpik cordless Advanced Water Flosser provides a unique combination of water pressure and pulsations to clean deep between teeth and below the gumline, removing plaque and debris that traditional brushing and flossing cant reach It is the first product in its class accepted by the American Dental Association (ADA) 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, its perfect for use in smaller bathrooms or for travel The 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, 4 hour rapid charge, and an easy to fill reservoir Backed by a 2-year manufacturers limited warranty, see product manual for details