Safe Material: BPA-free drinking water dispenser made of 304 stainless steel and high-density ABS plastic. Non-toxic and odorless. High Compatibility: Electric pumping device suitable for standard pure bottled drinking water. Fits various gallon-sized water barrels without requiring lid removal. USB Rechargeable Battery: Built-in 1200mAh rechargeable battery. Operates for 30–40 days or pumps approximately 4–6 bottles of 5-gallon water on a full charge. No daily charging required. Easy to Use: Simply attach the pump to the bottle opening. One-button operation, user-friendly for all ages. Note: This water pump is designed for water barrels with a 2.16-inch (55mm) neck. Operating Voltage: DC 3.7V Power Rating: 3.8W Charging Time: 3–4 hours Charging: USB charging cable included Compatible With: 2, 3, 4, and 5-gallon water bottles Product Dimensions: 7.5 x 13 cm (2.95 x 5.1 inches) Hose Length: 21.7 inches Pipe Length: 4.7 inches Instructions: Connect the silicone hose and insert it into the bottle. Secure the water pump in place. Press the button to dispense water. Press again to stop. Charge using the included USB cable when battery is low. Color: Black + White Material: ABS + Stainless Steel Package Contents: 1 x Water Pump, 1 x Inlet Pipe, 1 x Outlet Pipe, 1 x USB Charging Cable Note: The package includes only the items listed. Other products are not included. Note: Lighting and display differences may cause slight color variations between the image and the actual product. Measurement tolerance: ±1–3 cm.