3 operation modes and 2 replaceable nozzles to satisfy daily oral hygiene needs of the whole family. Effectively and efficiently removes plaque and bacteria between teeth to improve overall oral health, providing healthier gum and brighter teeth; IPX7 waterproof design is adopted both internally and externally to provide dual protection. The intelligent design prevents leakage and allows it to be used safely even in the bathroom; And its USB rechargeable design, powerful lithium battery provides convenience and flexibility. Never worry about dead batteries, ideal for travel. A Professional cordless dental flosser for the whole family.