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 can t 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 it s 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 manufacturer s limited warranty see product manual for details.