Two-year warranty 210 ml water tank 2 speeds 4 heads Battery capacity for approximately 50 uses of the entire water tank 45 to 75 PSI boost Rechargeable and portable, the Cordless Plus water flosser is perfect for use in smaller bathrooms or for travel. It offers an ultra-quiet design and an ergonomic narrow hand grip for easy-to-hold control. This model comes with 4 flossing tips for a variety of dental needs, 2 pressure settings, and a removable water reservoir with up to 45 seconds of flossing time. The special 360-degree rotating tip handle easily reaches your whole mouth, even back teeth.