Feature 1No Oil Pollution: You don't need to add oil when working, and you can't oil the aerator pump to keep the air clean. 2High Efficiency: Using electromagnetic vibration method, low power consumption, high efficiency, energy saving and power saving. 3Low Noise: Manufactured according to the principle of air flow, using double sound insulation to reduce noise and increase oxygen. 4Stable Performance: Stable air volume and air pressure, suitable for places where water flow is stable, and can be placed in fish tank. 5Manufacturing Material: Made of high quality plastic materials, durable, beautiful and generous, durable, safe, and can be used for a long time.Item Type: Fish Tank Oxygen PumpPower: 2.8WMaterial: PlasticVoltage: CN 220VColor: As Pictures ShownExhaust Volume: 2x3L/minWeight: Approx.591g/20.8ozPurpose: Aquarium Aeration PumpBattery: SB6045B 4500mAh (with Built in Battery) .wang-edit-text{ font-family:'Arial' !important; } .wang-edit-text table { border-top: 1px solid #000; border-left: 1px solid #000; } .wang-edit-text table td, .wang-edit-text table th { border-bottom: 1px solid #000; border-right: 1px solid #000; padding: 3px 5px; } .wang-edit-text table th { text-align: center; }Package List1 x Fish Tank Oxygen Pump1 x Power Cord2 x Bubble Stone2 x Hose1 x ManualNote1. Do not immerse the oxygen pump in water and do not oil the oxygen pump.2. Dear customer, please rest assured to buy without worrying about the plug adaption. We will provide an adapter for you according to different country standard for ensuring its normal use.