Product details:

🌼  Safe Material: BPA-free, Food grade silicone hose, 304 stainless steel, high-density ABS plastic shell.

🌼   USB powered: The rechargeable battery can be used to pump out 4-6 water jugs if fully charged.

🌼  Fits All Standard Size Bottles: Standard size is 2.16 Inch (5.5cm) neck size, fits for 2, 3, 4, 5 gallon and other standard size water bottles.

🌼  Extensive use: Portable device for both indoor and outdoor use like office, home, Kitchen, camping, picnic, activities, etc

Instructions:

🌼  Connect the silicone tube and stainless steel tube

🌼  Insert the silicone hose into the bottle. Then fasten the pump

🌼  Press the button to pump out the water

🌼  Press the button again to stop pumping

🌼  Charge with the Micro USB cable when out of battery