Feature: 1. Dual Power Supply Mode: This aerator pump adopts dual power supply mode, without stopping day and night, using sunlight to charge during the day, and switching to battery power at night. 2. Ultra High Endurance: This aerator pump has ultra high endurance to meet daily air requirements, and can provide about 30 hours of continuous oxygenation and 55 hours of intermittent oxygenation on a full charge. 3. 2 Air Hoses: This oxygen pump has 2 air hoses to supply oxygen, which is flexible to choose, you can supply oxygen to different tanks at the same time or two air hoses to supply oxygen to one tank at the same time. 4. Excellent ABS Material: This oxygenator pump is made of excellent ABS material for the shell, which is very strong and wear resistant, not easy to be damaged, and sealed without water leakage, so it can be rainproof and explosive resisitant, safe to use. 5. Wide Application: This oxygenator pump is very widely used, and can be used for indoor water tanks, outdoor pools, seafood store tanks, buckets used for fishing. Specification: Item Type: Air Pump Oxygenator Material: ABS Solar Panel: 6V 5W Air Pump Battery: 3.7V Rechargeable Li Ion Battery 1665mAh x 1 ( Shipped With Built In Battery ) Charging: DC5V 1A ( Can use cell phone charger, rechargeable treasure or computer and so on 5V power charging, with DC power supply about 4 to 5 hours full, with solar energy about 7 to 8 hours full.) Flow Rate: 1.8L x 2/MIN Pressure: 0.02MPa Power: ≤1W. Package List: 1 x Oxygenator Pump 1 x Solar Panel 1 x Connection Cable4 x Hose2 x Check Valve2 x Bubble Stone1 x Manual Note: Solar panel does not come with power storage function.