①.【Dental Oral Irrigator Water Flosser】With 5 professional water flow settings (low, medium, high, pulse and DIY) and an adjustable psi range from 30 to 130, our cordless water flosser can effectively clean food debris, namely every corner that traditional cleaning cannot reach. ②.【400ml Removable and Cleanable Water Tank】The 400ml water tank is suitable for sufficient and continuous flossing without the need to refill water again and again. The upgraded removable fully open water tank allows you to thoroughly clean plaque and food debris that ordinary oral irrigators cannot do. ③.【Portable Water Flosser】This portable dental water flosser has a cordless and lightweight design, suitable for travel and small bathrooms. There are 6 interchangeable 360° rotating nozzles, 60 seconds cleaning time, IPX7 waterproof for shower use, universal USB cable, quiet design. This water flosser is suitable for different family members and is suitable for use at home, office or travel. ④.【Convenient and safe】This electric oral irrigator has an ergonomic S-shaped design, which is easier to grip. The rechargeable oral irrigator can be fully charged in 4 hours. USB charging can be charged using a computer, power adapter, mobile power or car charger, and can be used continuously for about 21 days.