Deeply Clean Teeth, Whiten Teeth and Improve Gum HealthWith upgraded unique pulsation technique, massage the gum effectively and promoting blood circulation. Also helpful for bleeding gums, bad breath, benefitful for orthodontic brace and bridge care. Powerful Battery Life with USB Cable Charged for Travel & IPX7 WaterproofWith powerful and environmental lithium battery, fully charged need 4 hours and used continuously for about 21 days. Come with USB Cable, (Adapter Not Included), applicable to a variety of charging equipements such as power bank, computer, laptop.... With double-sealing rings, Nicwell oral irrigator prevent water leakage reliably, can use for shower in the bathroom and it's washable to clean. Carry on SizeCordless and lightweight, this water teeth cleaner picks is ideal for travel, 4 interchangeable jet tips included for your whole family. 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 Large Capacity Water ReservoirThe Large Capacity water reservoir is enough for a 60-second full mouth clean. No need to refill or pour out the remaining water. More Ergonomic DesignThe compact size of this water dental flosser makes it perfect for travel and small bathrooms. The connection line is higher than the traditional water tank, preventing the bottom from being too large and heavy. Users will feel more comfortable when picking it up.