Electric water bottle pump, water dispenser usb rechargeable automatic water dispenser with wide spout automatic water dispenser :the water bottle pump is equipped with an automatic switch that dispenses water with just one button. usb charging :the water pump can be charged via usb, making it convenient to use anywhere. one-button operation :the water pump is designed with a one-button operation, making it easy to use for anyone. 1. simple and convenient, press the button to water out/press the button to stop water 2. highly compatible base, universal for big and small barrels 3. built-in 800 ma large battery can pump 4-6 barrels of water when charging 4.fast water outflow, a glass of water in 3 seconds water bottle pump water dispenser usb charging automatic water bottle pump water pump one button switch of water dispenser.