Integrated & Stylish design: The water bottle pump adopts integrated design & leak-proof design, which has great sealing performance and refuses to water leakage. No water is stored inside to prevent bacterial infection.  High Compatibility: The electric pumping device suitable for pure bottled drinking water, suitable for a variety of models gallon barrel without pry the lid.  USB Rechargeable Battery: Built in rechargeable 1200mAh battery. Can used for 30-40 days or around 4-8bottles of 5 gallon water once full charged.  Easy to Use: Simply fasten the small pump on the bottle mouth. One switch operation, With 600ml volume control buttons, one button to pump and autostop when reach certain volume water . It can be carried around, suitable for families, offices and tourist picnics.    Colour:white  Material:plastic    Package Contents:  1 * Water Bottle Dispenser  1 * usb data cable  Note: The drinking water pump is suitable for gallon barrels with a 2.36-inch (6.0cm) neck. Please confirm the size of your neck before purchasing.    Only 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.