Safe Material: Made from food-grade 304 stainless steel and high-density ABS plastic, non-toxic and odorless. High Compatibility: Electric water pump designed for standard pure bottled drinking water; fits most 2–5 gallon water bottles without requiring lid removal. USB Rechargeable Battery: Built-in 1200mAh rechargeable battery provides up to 30–40 dispenses or approximately 4–6 full 5-gallon bottles per charge. Easy to Use: Secure the pump onto the bottle opening with one simple attachment; single-button operation for effortless use by all ages. Note: Compatible only with water bottles featuring a 2.16-inch (5.5 cm) neck diameter. Operating Voltage: DC 3.7V Power Rating: 3.8W Charging Time: 3–4 hours Charging Method: USB charging cable Compatible Bottle Sizes: 2, 3, 4, and 5 gallon water bottles Dimensions: 2.9 × 5.1 inches (7.5 × 13 cm) Hose Length: 21.7 inches Pipe Length: 4.7 inches Instructions: - Connect the silicone hose and insert it into the water bottle. - Secure the water pump onto the bottle opening. - Press the button to dispense water. - Press the button again to stop dispensing. - Recharge using the included USB cable when battery is low. Color: Black and white Materials: ABS plastic and stainless steel Package Contents: - 1 × Water pump - 1 × Inlet pipe - 1 × Outlet pipe - 1 × USB charging cable Note: Color appearance may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.