Water Flossing Cleans Effectively for a Healthier Mouth: The COSLUS C20 water flosser boasts advanced,safe,and effective 0.m+0.m ultra-fine -thread water pulse technology,developed and continually optimized by our research te over years of research and real user testing. This water dental pi delivers ​​1400-1800 high-prure pulses per minute​​ to ​​tart and dislod​​ plaque for a thorough clean. This water flosser also features multiple operat modes and multiple prure settings to suit different oral condits and users Upgraded 300ml Extra-Lar Water Tank,No Need for Frequent Refills: COSLUS C20 water flosser features an upgraded 300ml water tank,twice the acity of other old models,eliminating the need for frequent refills and making your oral cleaning more convenient and efficient 30 Days Super Long Battery Life,Portable Use Anywhere: COSLUS C20 water flosser boasts double the battery life of others with a powerful recharable battery and battery indicator. Just char for 3 hours and enjoy 30 days of use. It's pact and lightweight, for home and travel use. This water dental pi es with a USB cable making it an ideal travel kit. from an exceptally long 30-day battery life,making it a truly portable solut for your convenience IPX7 Waterproof and 3-Year Durability: COSLUS C20 wirel water dental pi boasts superior waterproofing,allowing easy cleaning and safe use during showers. Its upgraded motor delivers a more effective -stre water flow and is built to last for 3 years under typical use Easy to Use and ntle Safe: Through the dedicated research and iterative practical validat by our develoent te,COSLUS C20 water flosser provides multiple operat modes and prure settings,with three convenient modes to suit the needs of different a groups,while ensuring l performance and lonvity. Its ergonomic handle and five interchanable tips a fortable and versatile experience Note: a,Adapter is not included to avoid wasting resources,but you can char it using any 5V DC adapter with USB-A port on hand. If ned,t from COSLUS. b,For first-time use,set to 'Soft' mode and keep your mouth closed to let your gums graly adapt to the water prure. c,Paaging may vary (new or old),but the con are exactly the se..