1、Quiet Design: This mini oxygen pump is silent design, which can keep the aquarium quiet and comfortable without disturbing the surrounding environment. 2、Portable: The small aquarium oxygen pump is easy to carry, energy saving and power saving, it is a perfect tool for outdoor fishing, you can always keep your fish alive. 3、USB Powered: The aquarium oxygen pump is USB powered, easy to access to various devices, such as computers, rechargeable treasure, etc., more convenient to use. 4、Efficient Oxygenation: The oxygen pump is not only compact, but also can regulate the amount of oxygen, providing enough oxygen to keep the fish growing healthily. 5、Widely Applicable: This silent oxygen pump is not only suitable for indoor fish tanks and aquariums, but also for outdoor fishing and other scenarios. Item Type: Silent Oxygen Pump Material: ABS 1 x Silent Oxygen Pump