Battery operated, portable, and waterproof, the Baifros Portable Water Flosser Oral Irrigator YXY-201 is designed for travel anywhere, use in the shower, or for smaller bathrooms. It provides a unique combination of water pressure and pulsations to clean deep between teeth and below the gum line, removing harmful bacteria and debris that traditional brushing and flossing can't reach. The Baifros Portable dental water flosser is a great solution when you want the convenience of water flossing in the shower or on the go. It includes 1 lithium ion battery (rechargeable), an easy-to-fill water reservoir, and 4 water flossing tips.