Product Description Material: ABS Size: 7.8*7.8*22cm Battery: Lithium-ion battery Battery capacity: 800MAH Product voltage: 5V Power: 5W Charging time: 2-3 hours Use time: 5 minutes per day Life time: 20 days Water tank capacity: 350ml Water pressure: 30-90 PSI Product noise: 65db Applicable people: over 10 years old Work instruction: turn on/white light Color: pink Quantity: 1 piece Package content: 1 piece * Teeth cleaner(5 brush heads) Interdental massage, clean mouth, strong pulse, and the whole machine is waterproof. Professional care and cleaning, solve a variety of oral problems, clean between teeth without residue; A total of 5 brush heads are equipped to meet the needs of different scenarios; Gravity ball absorbs water, splash-proof silicone sleeve, 350ml detachable large-capacity large water tank capacity, three major modes can be switched at will: Gentle mode: gentle water pressure, suitable for novices and people with sensitive mouth High pressure mode: high water pressure, efficient cleaning, suitable for most people Pulse mode: pulse water pressure, can massage the gums, buffer the whole body washing DEEPLY CLEAN TEETH IMPROVE GUM HEALTH:Dental water jet flosser, remove 99.99% food residue hidden deep within dental cracks and the gum effectively, traditional brushing can not reach, while massaging your gums and promoting blood circulation