?USB Rechargeable Lithium Battery of 1200 mAh?This portable water flosser has a long endurance. One time charge in 4-5 hours, available for 7 days’ use, twice a day. It will stop automatically after 2mins of work, more safe. ?3 Cleaning Modes?This cordless water flosser with memory function allows adjusting the best mode according to the sensitivity of your teeth and gums to satisfy your daily oral hygiene needs. Normal, soft and pulse mode meet your different requirements for teeth cleaning. Preset mode before use and Innovative memory function helps to keep in your preferred mode for next use. ?Detachable 300ML Water Tank?300ml water reservoir is enough to clean oral dental water pick teeth cleaner. Removable full-opening water tank allows you to fill easily and thoroughly clean the lime scale and bacteria inside. The waterproof design allows the dental oral irrigator to be used safely for shower in bathroom. ?High Efficiently Teeth Clean?Only just brushing your teeth will leave food residue, which can lead to gum disease, tooth decay, and bad breath. The 360° rotatable teeth water flosser with high pressure pulse water jet cleans deep between teeth and below the gum line where toothbrush and traditional flossing can't reach. Perfect for braces, implants, and other dental work. ?GTGUARD Water Dental Flosser ?Cordless and lightweight,This water picks for Teeth cleaning is ideal for travel and business trip.It also contains 5 replaceable nozzles, suitable for the whole family. we have water flosser perfessional customer service, if there is any problem with the product, you can contact us at any time within 24 hours.