A perfect set of high-quality air pump kits that can keep your aquarium high in oxygen and help keep fish healthy. It has the characteristics of quiet and lightweight. Features: Package Includes: Whole air pump set comes with everything you need. aquarium air pump, tube, air stone. Low Power Consumption: Easy to use and low power consumption. Battery operated, 2D battery(not included). Better for supply oxygen: Airstone produces more bubbles, making it easier for oxygen to melt in the water. Super Silent: Very quiet when working and will not affect you and your pet’s sleep. Used to supply oxygen to water, suitable for aquarium, fish tank. Warranty: If there are any problems, please contact our store in time. We will give you a satisfactory solution. Specifications: Item: Air pump kit Main material: ABS Color optional: White/black Pressure: 0.02mpa Output: 4L/min Battery: 2D battery(not included) Size: 1307540mm Note: * There could be some deviations due to manual measurement or