Cordless water flosser can remove 100% food debris and dental plaque with sound pressure frequency, and improve oral problems such as gum bleeding and bad breath. This water flosser used for teeth has 3 built-in pressure settings, providing a wider range of strength options (normal, soft and pulse), and the water capacity is sufficient for 60 seconds of oral cleaning. There is no need to replenish water many times. 21 day battery life rechargeable dental irrigator can be fully charged in 4 hours (USB cable included, adapter not included). The Water jet flosser is equipped with 2 replacement tips, and the 360 ° rotating nozzle can easily clean the hidden area. Cordless portable oral irrigator is designed to be easy to use at home and traveling.