1. High-frequency pulse water flow technology, one flush and clean.2. ultra-fine pulse water flow, built-in smart chip to accurately clean the space between the teeth and the dead corner of the mouth, and clean the teeth deeply to care for the gums.3. The whole machine is IPX7 waterproof, and you are not afraid of washing in the shower.4. appearance design, stylish and beautiful, streamlined waist design, fits the line of the hand, easy to use.5. Equipped with 4 kinds of professional transparent nozzles to meet the needs of various people.Specifications:Water tank capacity: 220mlCharging voltage: 5VBattery capacity: 1500mAhPower mode: electricColour: WhiteMaterial: PCPackage Contents:1 x Tooth scaler4 x nozzles1 x USB charging cable1 x English manualOnly the 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 allowed error is +/- 1-3cm.