Deep Clean, Improve Gum Health, Freshen Breath -- The water dental flosser boasts advanced dual-thread water pulse technology, professionally endorsed by an American dental team. This water dental pick delivers high water pressure pulses at 1400-1800 times per minute, effectively removing 99.9% of dental plaque for deep teeth cleaning. This water dental pick massages the gums, promotes blood circulation, and addresses oral issues like bad breath, orthodontic teeth Upgraded 300ml Extra-Large Water Tank, No Need for Frequent Refills -- This water dental flosser features an upgraded 300ml water tank, twice the capacity 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 -- This water dental flosser boasts double the battery life of others with a powerful eco-friendly battery. Just charge for 3 hours and enjoy 30 days of use. It's compact and lightweight, perfect for home and on-the-go use. This water dental pick comes with a USB cable (adapter not included) making it an ideal travel kit. Benefit from an exceptionally long 30-day battery life, making it a truly portable solution for your convenience IPX7 Waterproof and 3-Year Lifespan Guarantee -- Our wireless water dental pick boasts superior waterproofing, allowing easy cleaning and safe use during showers. Its upgraded motor provides a more effective dual-stream water flow and a 3-year lifespan. User-Friendly and Safe, a Perfect Gift Choice -- our flosser provides 4 convenient modes [Powerful, Standard, Light, DIY] to suit different needs of 99% different age groups, while ensuring optimal performance and lifespan. Its ergonomic handle and 4 interchangeable nozzles ensure a comfortable and versatile experience. It makes a thoughtful gift for birthdays, Christmas Thanksgiving Valentine's Father's Mother's Day or looking after your loved ones' oral healthWhat will you get?-- 1Water Dental Flosser4Replacement Heads; 1User Manual; 1Charging Cable (Notes: Adapter not included)