High-pressure OutputIt produces high-pressure output perfect for protein skimmers, oxygen reactors and other devices.High PerformanceHigh performance battery powered aquarium air pump provides ample airflow for transporting fish or isolating fish while breeding.High QualityIt is made of high quality plastic, safety, non-toxic, tasteless, to ensure your pet safety.Powerful MotorCompact design battery powered fish tank air pump with powerful motor.Easy to CarryIt is very easy to carry, you can carry it when fishing.Specification:Shell material: ABSColor: greenWorking voltage: DC 3VRated power: 0.5WAir flow: 0.5L/min (80cm)Air hole outer diameter: 4.6mmTracheal length: 82cmBattery: 2 AA batteries (not included)Working time: more than 10 hoursApplicable water volume: 80-100L (about 80cm fish tank)Size: 7 x 6.4 x 2cm / 2.76 x 2.52 x 0.79 inch (appr.)Package List:1 x Fish Tank Air Pump