1. Interdental massage, clean mouth, strong pulse, and the whole machine is waterproof. Professional care and cleaning, solve various oral problems, clean and no residue between teeth;:2. A total of 5 brush heads are provided to meet the needs of different scenarios; 3. The gravity ball absorbs water, splash-proof silicone cover, 350ml detachable water tank and three modes can be switched freely: gentle mode: gentle water pressure, suitable for beginners and people with sensitive mouth. High pressure mode: high water pressure, efficient cleaning, suitable for most people. Pulse mode: pulse water pressure, massage gums, body wash buffer Product name: electric dental irrigator Battery: 14500 lithium-ion battery Battery capacity: 800MAH Product voltage: 5V Power: 5W Charging time: 2-3 hours Usage time: 5 minutes a day Battery life: 20 days Water tank capacity: 350ml Water pressure: 30-90PSI Product noise: 65db Applicable people: 10 years and above Operating instructions: power on/white light Color: white Material: ABS Size: 7.8 x 7.8 x 22 cm Package content: 1 x Host 5 x nozzle 1 x charging cable 1 x English manual only above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement error is +/- 1-3cm.