ELECTRIC FOLDING WATER PUMP：This water bottle pump with a foldable water outlet can allow you to enjoy hygienic and safe drinking water at anytime. Light weight and more easier to store and carry than ordinary water dispensers, which is ideal for picnics, camping, workshops and garages, etc. It is also a good companion for daily use at home, kitchen and office. TWO MODES OF QUANTITATIVE PUMPING CONTINUOUS PUMPING：the electric water pump has two buttons, press the "600ml" button to start pumping about 600ml of water and then stop automatically; Press the "switch" button to pump water continuously for 90 seconds and then stop automatically. Two options, more convenient, more efficient. USB RECHARGEABLE WATER BOTTLE DISPENSER：The automatic drinking water pump has a built-in rechargeable 1200 mAh battery, which can pump 8-10 buckets of water on a single charge. TYPE-C universal connection charging, it takes 2-3 hours to fully charge. When charging, the LED light will be red and will go out when fully charged. UNIVERSAL COMPATIBLE：The electric pumping device is suitable for 38mm-58mm diameter water bottle mouth. Fits 2, 3, 4, 5 gallon water bottles. Don't need to pry the lid. NOTE: please confirm the size of your barrel neck before purchasing.