【Safe Material】BPA free drinking water dispenser, food grade silicone hose, 304 stainless steel, high density ABS plastic, non-toxic and odorless. High Compatibility: The electric pumping device is suitable for bottled pure drinking water, suitable for a variety of models of gallon barrels, without removing the lid. [USB RECHARGEABLE BATTERY] Built-in 1200mAh rechargeable battery. Can be used for 30-40 days or approximately 4-6 5 gallon water bottles once fully charged. No need to charge every day. 【Easy to Use】Simply attach the small pump on the mouth of the bottle, one-key operation, completely hassle-free even for kids and the elderly. [Portable Design] Easy to carry, it is the ideal choice for office, outdoor activities, home and anywhere else.