Portable Design- The water flosser cordless has 300ML water tank, which is convenient and lightweight for business trips, home travel and camping. Efficient Teeth Cleaning-This professional water flosser features 1250 times/minute high-pressure water pulse and 90 PSI water pressure, which can effectively remove up 99.99% food residue between the teeth, massage the gums, and clean the teeth. And it is also helpful to keep your breath fresh and improve your dental health. 5 Replaceable Jet Tips-The water dental flosser is equipped with 5 normal nozzles, which is 360 rotatable in the machine, helping you to clean all the hard-to-reach areas of the food debris. One-key control is easy to operate and can flow steady water pressure, suitable for the people who are used to daily clean. Ergonomic Design-The dental water flosser is designed with ergonomic curve, easy to clean. Material: 4 modes, 300ML large capacity, 100 hours battery life