[Solar Powered] Solar powered, no electricity needed, just the sun, energy-saving and environmentally friendly product. [Working mode] The oxygen pump works for 10 seconds and stops for 10 seconds. It is recommended to install in a small family pond, and a small area of the pond to increase oxygen. [Easy to use] Connect the tube and the air stone put it in water, the aerator pump will float in the water and work. [Low noise] Stable and quiet oxygen pump, the volume is less than 60 decibels, and the airflow is 0.8 liters/minute. [With battery] Built-in 3.7V 2200mAh lithium battery to store energy, so the oxygen pump can also work at night. The oxygen pump runs for 10 seconds and stops for 10 seconds. It is recommended to install in a small family pond, and a small area of the pond to increase oxygen. [Easy to use] Connect the tube and the air stone put it into the water, the aerator pump will float in the water and work. [Low noise] Stable oxygen pump and silent, the volume is less than 60 decibels and the air flow is 0.8 liters / minute. [With battery] Built-in 3.7V 2200mAh lithium battery to store power, so the oxygen pump can also work at night. Features: Material: ABS The color black Battery : 1 x 3.7V 2200mAh lithium battery Solar panel: 6 V/2.5 W PET Monocrystalline silicon Lifetime=10000 hours Solar panel shape: Round Rated voltage: 5 V Noise: less than 60dB Maximum flow rate: 0.8 Lmin Mode working time: work for 10s and stop for 10s Waterproof: IP65 Working time: 16h Charging time: 5-6h Working temperature: -10 45 Occasion: small pond Solar panel diameter: 18cm/7, 08inch Package Size: 19 x 19 x 6cm/7.48 x 7.48 x 2.36inch Package Weight: 400g/0.88lb Package List: 1 Solar Aerator Pump 1 Bubble Stone 1 Hose Note: 1. The working power of the solar panel will be influenced by weather conditions, location, etc. 2. Do not operate the pump without water, or its service life will be shortened. 3. Clean the pump regularly. If it is a duty, it will stop working. 4. The package contains small parts, so please keep them away from children and pets. (choking hazard)