Feature:1. Variable Frequency Technology: Experience advanced variable frequency technology that allows for flexible control of waterflow, effectively simulating ocean environments for healthier aquatic life.2. Remote Control Convenience: Equipped with an external control device, this pump makes it easy to remotely adjust power settings without the need for frequent manual adjustments, enhancing user convenience.3. Versatile Compatibility: Designed to cater to various aquarium sizes, this circulation pump is suitable for everything from small home tanks to large public aquariums, making it a versatile addition to any aquatic setup.4. Efficient Circulation: Facilitating deep water circulation, this pump effectively supports aquatic plant growth and enhances fish respiration, promoting a healthier environment for fish and other marine life.5. Quiet Operation: Enjoy a peaceful aquatic environment with our nearly silent operation. The wave maker pump works quietly in the background, ensuring it does not disturb the life within your aquarium.Specification:Item Type: Aquarium Circulation PumpMaterial: ABSSize: Approx. 5x9cm / 1.97x3.54inVoltage: 12VGears: 4 GearsRecommended Tank Size or Water Volume: 20-60cm/within 150L capacity.Package List:1 x Wave Maker Pump1 x Instruction Manual1 x Black Circular Cover1 x Accessory