perfect set of high quality air pump kits which can keep your aquarium rich in oxygen and help keep fish healthy. It has the characteristics of quietness and lightness. Features: Package includes: Air pump assembly comes with everything which you need. Aquarium Air Pump, Tubing, Air Stone. Low Power Consumption: Easy to operate and low power consumption. Battery Operated, 2*D Battery (Not Included). Better at Delivering Oxygen: Airstone produces more bubbles which makes it easier to melt oxygen in the water . Super Quiet: Very quiet when working and will not affect your and your pet’s sleep. Used to supply oxygen to water, suitable for fish tank, fish tank. Guarantee: If there is any problem, please contact our store in time. We will give you a satisfactory solution. Features: Item: Air Pump Kit Main Material: ABS Color optional : white / black Pressure: 0.02mpa Output: 4L / min Battery: 2 * D battery (not included) Size: 130 * 75 * 40mm Note: * There may be deviations due to manual