[Deeply Clean Teeth, Whiten Teeth and Improve Gum Health]: With upgraded unique pulsation technique,water dental flosser can offer high pressure water pulse 1600-1800 times/min, 20-140PSI strong water pressure to remove oral hidden deep, massage the gum effectively and promoting blood circulation. Also helpful for bleeding gums, bad breath, benefitful for orthodontic brace and bridge care. [DIY+3 Modes Meeting the needs of oral hygiene]: DIY mode can adjust the water pressure by itself. Long press and hold the DIY button to cycle the water pressure between 20-140PSI. After feeling the appropriate water pressure, release the button to maintain the water pressure. The next time you use it, DIY has a memory function that will directly default to the water pressure. Multiple Enjoyments in One Mode to Meet All Nursing Needs [Carry on Size]: Cordless 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 [IPX7 Waterproo&fPowerful battery]: It can be used under any conditions, such as bathing or swimming, and can be completely immersed in water for more than 30 minutes. Fully charged, it only takes 3-4 hours to meet the daily usage needs of 50 days. [Easy to clean]: Detachable water tank, split construction. The water tank can be removed and cleaned separately to ensure long-term hygiene.