Specification:Item Type: Dental Oral IrrigatorMaterial: ABSBuilt in Lithium Battery: 1100mAh (Shipped with Built in Battery)Water Capacity Tank: 230MLWaterproof Rating: IPX7Function: gums, gaps, prevent tooth decay, can effectively remove plaque, prevent gingivitis and reduce gum bleedingFeatures: high frequency pulse, strong power output, equipped with intelligent stabilisation system, continuous constant power . Powerful and strong endurance. Waterproof body, not afraid of water washing. Easy to carry, health on the goHow to Use:1. First insert the nozzle into the main unit, holding it upright by hand with the end of the nozzle facing towards the teeth. 2. Keep the appliance perpendicular to the area when using it for best results. The mouth is slightly open so that the water in the flushing mouth can be left out. Press the on/off button to start rinsing. 3. 3. Note: After use, wash and dry thoroughly before storing the product. Before storing the product, please pour out the residual liquid in the tank, turn on the switch, drain the water inside the product and run the product for 2~3 seconds until no more water is discharged.4. When removing the nozzle for replacement or removal, press the removal button on the top of the product before removing the nozzle and place the nozzle back into the receiving hole.Package List:1 x Main Unit (Battery Included)5 x Nozzle 1 x USB Charger 1 x Manual 1 x Bottle Cover for Base