Description The USB portable oxygen pump for fish tanks is a must-have for all fish enthusiasts. Its simple and convenient design makes it suitable for both beginners and experienced individuals. With its quiet operation, it can be used in various settings such as living rooms, bedrooms, and offices, providing a peaceful environment for your fish. Features -Color:Black-Material:Plastic-Size:7.60X3.00X3.00cm/2.99X1.18X1.18in- Rated voltage: 5V-Easy to use and suitable for beginners and experienced individuals, this oxygen pump is designed to be user-friendly.-This convenient oxygen pumpcan be easily operated by both beginners and experienced individuals, very convenient.-Quiet operation for a peaceful fish-keeping environment, the silent oxygen pump operates silently, ensuring peaceful.-Versatile and can be used in various settings like living rooms and offices, this portable oxygen pump is versatile used.-This oxygen pumpcan be used in different settings such as living rooms, offices, or even outdoor spaces. Widely used.Packing list: 1 x fish tank oxygen pump