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 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.