Spacesaving design The compact form of this USB oxygenator fits snugly in a variety of tank sizes, making it suitable for different aquarium setups. Quiet operation The pump runs with low noise, allowing you to enjoy the view of your fish without distraction. USB powered and rechargeable Powered via USB and rechargeable, it can be charged from any USB source (wall charger, laptop, power bank), enhancing portability and ease of use anywhere you are. Effective oxygen supply Provides reliable oxygenation for aquatic life, supporting healthy respiration and growth. Use scenarios Desktop nano tanks or small community aquariums where space is tight and quiet operation matters. Office or classroom aquariums that benefit from USBpowered flexibility and low noise. Travel or temporary setups that rely on USB power banks or laptops to maintain oxygenation when away from traditional outlets.