【4 Practical Flossing Modes】"Pulse" strong and weak pressures for gum massage." Gentle": suitable for people with weak and sensitive teeth and gums "Normal" standard water pressure for daily use. "Strong" suitable for braces, braces around the area of cleaning and cleaning the food residue between teeth 【1 Minute Cleaning Everyday】Easy and effective for deep cleaning the area between teeth and below the gumline where traditional toothbrush can't reach. Wash away food residue and debris with strong water pressure and pulsations to prevent oral issues for home & travel. 【310mL Large Capacity】Massive Experiments have proved that 310mL not only fits most people's needs, but also makes the set sturdy and long usage for each time. The water tank is easy to clean and the gravity ball design ensures smooth and full use of water flow. 【IPX7 Waterproof/Low Noise/Long Lasting】This cordless dental flosser is IPX 7 water resistant for safe and convenient use in the shower or bathroom. Noise is at a quiet 75dB, no interruption to others when using in the morning or late at night. The qualified battery will last more than one week per charge. 【What's Included】 Equipped with 8 interchangeable 360 degree rotating nozzles (6 jet tips, 1 orthodontic tip, 1 tongue coating cleans tip) for flexible use and multiple family members. Also comes with a USB Type-C charging cable/a waterproof bag for storage, a manual to get you familiar with the operations quickly.