[Solar Powered] Solar energy powered, no electricity needed—just sunlight. This energy-saving and environmentally friendly product harnesses solar power for efficient operation. [Working Mode] The oxygen pump operates for 10 seconds and pauses for 10 seconds. Ideal for small family ponds or localized areas requiring supplemental aeration. [Easy to Use] Simply connect the tube and air stone, place in water, and the aerator pump will float and begin working automatically. [Low Noise] Features a stable and quiet design with noise levels under 60 decibels and an air output of 0.8 liters per minute. [With Battery] Equipped with a built-in 3.7V 2200mAh lithium battery to store solar energy, enabling continued operation during nighttime or low-light conditions. Color: Black Blue Size: Approximately 19 x 19 x 6 cm Package Includes: 1 Unit