Safe Material: BPA-free drinking water dispenser, 304 stainless steel, high-density ABS plastic, non-toxic and odorless. High Compatibility: The electric pump device is suitable for pure bottled drinking water and fits various jug models without prying the lid. USB Rechargeable Battery: Built-in 1200mAh rechargeable battery. Can be used for 30-40 days or about 4-6 bottles of 5-gallon water when fully charged. No need to charge daily. Easy to Use: Simply attach the small pump to the bottle mouth. One-button operation, completely hassle-free even for children and the elderly. Note: This drinking water pump is suitable for jugs with a 2.16-inch (55 cm) neck. Operating Voltage: DC 3.7V Power: 3.8W Charging Time: 3-4 hours Charging: Micro-USB charging cable Suitable for: 2, 3, 4, 5 Gallon Water Bottles Size: 29*51 inches / 75*13cm Hose Length: 21.7 inches Tube Length: 4.7 inches Instructions: Connect the silicone hose and insert it into the bottle. Then attach the water pump. Press the button to pump out water. Press the button again to stop pumping. Charge with a Micro-USB cable when the battery is low. Color: Black + White Material: ABS + Stainless Steel Package Contents: 1 * Water Pump 1 * Inlet Pipe 1 * Outlet Pipe 1 * Micro-USB Charging Cable Package contents only, other products are not included. Note: Light and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowed measurement error is +/- 1-3 cm.