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 Pump Material: ABS Size: Approx. 5x9cm / 1.97x3.54in Voltage: 12V Gears: 4 Gears Recommended Tank Size or Water Volume: 20-60cm/within 150L capacity. Package List: 1 x Wave Maker Pump 1 x Instruction Manual 1 x Black Circular Cover 1 x Accessory