The Waterpik Nano Plus water flosser features full-size performance in a design that is 50% smaller than full-size models. It cleans deep between teeth and below the gumline, where traditional brushing and flossing can't reach, using a unique combination of water pressure and pulsations. The Waterpik Nano Plus water flosser includes 4 flossing tips for multiple family members and a variety of dental needs, 5 pressure settings for a custom clean, on/off water control on the handle, and a removable water reservoir with 60+ seconds of flossing time. The Waterpik Nano Plus 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 Nano Plus water flosser is accepted by the American Dental Association (ADA) for safety and effectiveness. Compatible with 120VAC/60Hz outlets, for use in North America Only. Backed by a 2-year manufacturer's limited warranty, see product manual for details.