Your Own DIY Mode:The cordless tooth cleaner features a personalized DIY mode, allowing you to easily adjust to your most comfortable water pressure (30-120PSI). Suitable for sensitive teeth, also helpful for bleeding gums, bad breath, beneficial for braces and bridge care. Latest Pulse Technique:Adopting the latest pulse technique from the 2021 Water Flosser, 30-120psi pressure range, 1800 times/min pulse rate, 360 rotatable long nozzle, low, medium, high, pulse, DIY, 5 deep cleaning modes with low noise high-intensity pulsating water design removes 99.99% of teeth stains that traditional brushing and flossing can't reach. 5 jet tips and 360rotation to clean teeth Deep teeth:This water flosser is equipped with 5 nozzles, can be used with your family. It also has a 360 rotating nozzle design, specially designed for periodontitis, braces and dental implants. Our portable oral irrigator prevents various oral health problems such as bad breath, tooth decay, bleeding gums and yellow teeth. IPX7 Waterproof Detachable Smart Water Tank:The 300ml large water tank provides enough water for teeth cleaning without interruption of adding water. You can also add water through the smart hole design, no need to remove the water tank. At the same time, the removable water tank can thoroughly clean the internal dirt. IPX7 waterproof design prevents water leakage. Large Capacity Battery Operated Flossers:The water tooth cleaner can be used continuously for 20 days after only 4 hours after fully charged. The USB socket is suitable for various charging devices, such as mobile power supplies, computers, laptops, wireless water flossers that are very convenient for home or travel.