[Safety Material] BPA-free water dispenser, food grade silicone hose, 304 stainless steel, high density ABS plastic, non-toxic and tasteless. [High Compatibility] The pumping device is suitable for pure bottled drinking water and suitable for a variety of models of gallon barrels, without straining the lid. The best choice for daily use at home, in the kitchen and in the office. USB Rechargeable BatteryBuilt-in 1200mAh rechargeable battery. After fully charged, it can be used for 30-40 days or about 4-6 5L bottles of bottled water. No need to recharge every day. [Easy to use] Just put the small pump on the neck of the bottle. 1 electric drinking water pump, 1 USB cable, silicone tube. An operation switch is completely trouble-free, even for children and people elderly.