Automatic Water Dispenser allows you to easily draw out water from 20 ltr bottles. Just press the button and let the pump do its job. Comes with a 1200mAH rechargeable battery, that can dispense approx 4-6 bottles. Easy to use and easy to install. Specifications Material: ABS, 304 Stainless Steel and Silicone Operating Voltage: DC 3.7V Power Rating: 3.8W Charging Time: 3-4 Hours Charging: Micro USB Charging Cable Suitable for: 2,3,4,5 Gallon Water Bottles Size: 2.9*5.1 inch Hose Length: 21.7inch Pipe Length: 4.7inch Package: 1 * Water Pump 1 * Food Grade Silicone Hose 1* Stainless Steel Pipe 1 * Micro USB Charging Cable 1 * English Manual Instructions: 1. Connect the silicone hose and insert the silicone hose to the bottle. Then fasten the water pump 2. Press the button to pump out the water 3. Press the button again to stop pumping 4. Charge with the Micro USB cable when out of battery