Features: 1. Made of high-quality materials, it can be used for a long time and is sturdy and durable. 2. The noise is very low in normal operation, ideal for bedrooms and living rooms, no annoying noise. 3. High performance Battery Powered Aquarium Air Pump provides ample airflow for transporting fish or isolating fish while breeding. 4. It is easy to charge, whether it is a computer or a power bank, a charging head or a car charging, there is no problem. 5. Compact design battery powered fish tank air pump with powerful motor. Great for outdoor fishing use. Notice: 1.Actual color may be slightly different from the image due to different monitor and light effect 2.Please allow 1-3cm deviation due to manual measurement Size: 90*85*30mm Charging voltage: 220-240V Charging time: 5h Battery capacity: 2200MA Motor power: 2W/2.5W Output airflow: 2L/2.5L/min Endurance time: continuous 13h/intermittent 25h Output Mode: Continuous Oxygenation / Intermittent Oxygenation Package List: 1 x Fishing Oxygenation Pump 1 x Air Pump Stone 1 x Charging cable 1 x Water pipe