Battery-powered aquarium air pump, quiet rechargeable portable fish air pump

【USB Rechargeable】 Up to 70 Hours. The built-in 2600mAh rechargeable lithium battery provides up to 70 hours of runtime (intermittent mode). It is therefore suitable for outdoor fishing, transporting fishing gear, and power outages, etc. It can be charged by devices with USB ports such as power banks, laptops, car chargers, and wall chargers. 【Strong Air Volume】 The air pump can generate a large amount of air and ensure sufficient air circulation in the aquarium. In continuous air supply mode, this air pump will continue to generate air bubbles. Airflow up to 3 L/min. Air pressure is 0.018 MPa. In intermittent air supply mode, there is a 10-second pause every 10 seconds, which saves energy and extends usage time. Recyclable. 【Energy Saving and Quiet】 The air pump's power is 1W, so it saves energy and doesn't overheat during operation. It operates at a minimum of 40dB at the lowest flow rate. It won't disturb your sleep while running. 【Applicable Scenarios】 This quiet air pump is perfect for freshwater and marine aquariums, ideal for any tank with a capacity of 5 to 15 gallons.