Material:Abs+Pc+Pom 1.Waterproof Grade:Ipx7 2.Water Tank Capacity:350Ml 3.Water Pressure:30-150Psi 4. Gear: Five Gears (Strong/Normal/Soft/Pulse/Child) 5:Power:3W 6: Battery: 1800Mah Lithium-Ion Battery, Charging Time: 3-6 Hours. 7:Noise:72Db Charging Mode: Dc 5V 1~2A Type C Standard Nozzle X 2. Plaque X 1 Orthodontic X1 Periodontal Pocket X1 Tongue Scraping X1 Instruction Manual X1 Type C Usb Cable X1 Powerful Mode/Strong Suitable For People Who Require High Water Pressure. Normal Suitable For Daily Cleaning Between Teeth Soft Mode/Soft Is Suitable For Daily Cleaning Between Teeth. Pulse Mode/Pulse Alternates Between Strong And Weak, Pulses For Deep Cleaning. Child Suitable For First Time Users With Low Water Pressure Warm Tips For Product Use Dental Experts Recommend First Time Users Should Use The Gentle Mode For A Week, And Then Use The Normal Mode After Getting Used To It. Press The On/Off Button To Use The Product. The Direction Of The Water Flow Is Perpendicular To The Teeth Or Gums; - The Direction Of The Water Flow Is Perpendicular To The Teeth Or Gums. -Move Slowly Along The Teeth And Clean Them In Order. - The Nozzle Is Aligned With The Gum Line And Is Perpendicular To The Gums; - The Water Flow Direction Is Perpendicular To The Teeth Or Gums. -Thoroughly Clean Teeth, Brackets, Crowns And Dentures.