Waterpik Cordless Pulse 3100 Rechargeable Portable Water Flosser for Teeth, Gums, Braces Care and Travel with 2 Flossing Tips, Waterproof for Shower Use, ADA Accepted, WF-20 White, Amazon Exclusive The rechargeable Waterpik Cordless Pulse 3100 water flosser is a great choice for smaller bathrooms, travel, and use in the shower. With its portable design, Cordless Pulse is perfect for home use, travel, and shower flossing.