Electric water dispenser has 2 buttons, press the switch button to keep pumping water, and then press it again to stop pumping water. Quantitative selection button has 7 kinds of capacity selection with indicator light, 100ML/200ML/300ML/500ML/700ML/1000ML/continuous pumping, Press the capacity button to select the amount of water, then pump water automatically and you can click the switch button to stop pumping at any time.
