Safe Material: BPA-free drinking water dispenser, food grade silicone hose, 304 stainless steel, high-density ABS plastic, non-toxic, odorless, cold and high temperature resistant. High Compatibility - The electric pumping device suitable for pure bottled drinking water, for 1, 2, 3, 5, 6 gallons and other standard sizes, without lifting the lid. RECHARGEABLE BATTERY INSIDE: USB cable charging, 2-3 hours is enough, it can be used for 30-40 days or around 4-6 5 gallon bottles of water once fully charged. no need to charge every day, every week. Help you make your life easier. Easy to use: just place the little pump in the mouth of the bottle. One switch operation, totally hassle-free even for children (2 years old or older) and the elderly.Note: Specially designed to prevent children from mistreating, children under 2 years old cannot press the key. Fast pumping and automatic shutdown: powerful 4W pump for fast water pumping. It can pump about 1.4 liters in 1 minute. This 5 gallon water dispenser has an automatic shut-off function after 1 minute and 30 seconds.