Deep clean teeth to improve gum health: The oral cleaner has strong, soft, and pulse modes to choose from, and a low-noise design with memory function. The high-intensity pulsed water jet can remove 99.99% of the stains that cannot be achieved by traditional brushing and flossing, keeping your teeth healthy and clean, and making your smile full of confidence. 5 Replaceable Nozzles: The 360rotatable nozzle allows you to easily clean areas that are difficult to reach and prevents tooth decay,dental plaque,dental calculus,gingival bleeding and dental hypersensitivity. IPX7 Waterproof Design: IPX7 waterproof design is adopted in both internal and external to provide dual protection. The intelligent design prevents leakage and allows the dental flosser to be used safely for shower in bathroom. Powerful Battery with USB Cable: The powerful aluminum battery can be fully charged in 4 hours and can be used continuously for 21 days. Great for carrying and traveling with you. Effective Problem Prevention: The water flosser effectively solves various dental problems, such as yellow teeth, bleeding gums, food residue, dental plaque. And it is suitable for people with orthodontic braces, sensitive teeth and mouth odor.