1. [Easy assembly and operation] First, install the silicone hose into the electric water distributor. Secondly, place the hose in the water and fix the water distributor to the bottle mouth. And finally, press the start button to start/ stop pumping water or press the 600 ml button to pump up to 600 ml. [ material] Silicone hose is made of FDA class material that you can place in drinking water without worrying. The bottle distributor body is made of insulation, which is the most suitable materials for electronic drinking water pumps, and high -density ABS plastic shell. We design this water distributor by combining the sophisticated internal structure with a mini -portable dimension. With this portable water distributor, you don't need expensive and space -consuming substance water distributors in your home. 4. 1200 MAH battery (USB charge) is permanent for 30-40 days using experience. This water pump is the perfect choice for home, kitchen, office, camp Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.