Safe Materials: Food-grade drinking water dispenser, 304 stainless steel, high-density ABS plastic, non-toxic and odorless. High Compatibility: The electric pump device suitable for pure bottled water, suitable for one of the models of gallon barrels without prying up the lid. USB Rechargeable Battery: Built-in rechargeable 1200mAh battery. Can be used for 30-40 or about 4-6 bottles of 5-gallon water fully charged. No need to charge daily. Easy to Use: Simply attach the small pump to the mouth. One-button operation, completely hassle-free even for children and the elderly. Note: This drinking water pump is suitable for gallons with a 2.16-inch (5.5cm) neck. Operating voltage: DC 3.7V Power: 3.8W Charging time: 3-4 hours Charging: USB charging cable Suitable for: 2, 3, 4, 5 gallon water bottles Size: 2.9*5.1 inches/7.5*13cm Hose length: 21.7 inches Tube length: 4.7 inches Instructions: Connect the silicone tube and insert the silicone tube into the bottle. Then attach the water pump Press the button to pump out the water Press the button again to stop pumping Charge with the USB cable when the battery is low Color: Black + White Material: ABS+stainless steel Package Content: 1 * Water Pump 1 * Inlet Tube 1 * Outlet Tube 1 * USB Charging Cable Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.