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 compatible with standard pure bottled drinking water; fits various 2–5 gallon water bottles without requiring lid removal. USB Rechargeable Battery: Built-in 1200mAh rechargeable battery. Provides up to 30–40 days of use or dispenses approximately 4–6 bottles of 5-gallon water per full charge. Easy to Use: Simply attach the pump to the bottle opening. One-button operation—intuitive and effortless for all users. Note: Designed for water bottles with 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: Micro-USB charging cable Compatible With: 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: 1. Connect the silicone hose and insert it into the water bottle. 2. Secure the water pump onto the bottle opening. 3. Press the button to dispense water. 4. Press the button again to stop dispensing. 5. Recharge using the included Micro-USB cable when battery is low. Color: Black + White Materials: ABS plastic + stainless steel Package Contents: 1 × Water Pump 1 × Inlet pipe 1 × Outlet pipe 1 × Micro-USB Charging Cable Note: Color may vary slightly due to lighting and screen settings. Measurement tolerance: ±1–3 cm.