✔Safe Material: BPA free drinking water dispenser, food grade silicone hose, 304 stainless steel, high density ABS plastic, no toxic, no smell, cold and high temperature resistance. ✔Fast Pumping and Auto Shut off: 4W strong pump to fast water pumping. Can pump around 1.4 liter in 1 minute . This water dispenser 5 gallon has auto shut off function after 1 minute 30 seconds. ✔RECHARGEABLE BATTERY INSIDE: Charging by USB cable, 2-3 hours is enough,Can used for 30-40 days or around 4-6 bottles of 5 gallon water once full charged. no need to charge every day, every week. Help you to easy your life. ✔High Compatibility: The electric pumping device suitable for pure bottled drinking water, For 1, 2, 3, 5, 6 gallon and other standard size，without pry the lid. ✔Easy to Use: One switch operation, Simply fasten the small pump on the bottle mouth. Note: The drinking water pump is suitable for gallon barrels with a 2.16-inch (5.5cm) neck. Please confirm the size of your neck before purchasing. Product Description Instructions: 1. Connect the silicone hose and insert the silicone hose to the bottle. Then fasten the water pump. 2. Press the button to pump out the water. 3. Press the button again to stop pumping. 4. Charge with the Micro USB cable when out of battery. Suitable for: 4.5L, 5L, 7.5L, 10L, 11.3L, 15L, 18.9L（2,3,4,5 Gallon Water Bottles） Fits All Standard Size Bottle: Standard size is 2.16 Inch (5.5cm) neck size. 1200mAh Battery It has a built-in Rechargeable 1200mAh Li-Ion battery. Once fully charged, it will last you a long time. Specification: Operating Voltage: DC 3.7V Color: White + Black Pipe Length: 4.7inch Hose Length: 21.7inch Dimensions: 7.5 x 13cm / 2.95 x 5.12‘’ Material: food grade silicone, 304 stainless steel, ABS Extensive use: Portable device for both indoor and outdoor use like office, home, Kitchen, camping, picnic, activities, etc Package: 1 * Water Pump 1 * Silicone Hose 1* Stainless Steel Pipe