【USB Charging】This automatic drinking water pump with USB charging has a built-in 1200 mAh battery. After full charge, it can be used for 30–40 days or for about 6–10 buckets of water (5 liters of water). It has a long battery life and does not need to be charged frequently. The powerful 4 W water pump can pump water quickly and pump out about 3 liters of water in 1 minute, giving you a more efficient and cleaner water output. Health and Safety: BPA-free electric drinking water dispenser, food-grade silicone hose, 304 stainless steel, high-density ABS plastic, no toxins and no odor, safe to use, eliminates bacteria and other health problems traditionally caused by repeated boiling and cooling.【Easy to Use】With this elegant electric water dispenser, you get a refreshing glass of water at the touch of a button. And when you want to refill your cup, you no longer have to lift or turn the bucket; just use the water bottle pump to get a glass of fresh, clean water. This is very practical and saves time and energy.【High Compatibility】The electric water dispenser is suitable for various models of gallon buckets, such as: 4.5 L, 5 L, 7.5 L, 10 L, 11.3 L, 15 L, and 18.9 L. In addition, you do not need to open the lid; it has a removable tube design and integrated silicone along the entire diameter, which is easy to clean and retains water.【Wide Application】The electric water dispenser has a smooth water flow and no splashing. The surface is matte black and feels soft to the touch, providing a more elegant and simple experience. Perfect for use at home or in the office, its compact dimensions make it easy to transport, making it also suitable for outdoor travel, picnics, camping, barbecues, and beach holidays.