Features 1Lightweight and easy to carry. Stable working performance and good working condition. 2Provide oxygen for the growth environment of fish and organisms. This product is suitable for adding oxygen to fish and seafood products during outdoor fishing. 3Foldable and adjustable for better exposure to sunlight. Convenient operation. 4Polycrystalline PET lamination process this product is durable in use and has a long service life. 5Connect the bubble stone to the exhaust hole and put it into the water that needs oxygenation. The solar battery faces the sunlight and there is no obstruction between the solar battery and the sunlight. Press the switch and the oxygen pump will start to work. Press the switch repeatedly to select different working modes. Specification Condition: 100% Brand NewItem Type:OxygenatorMaterial: Polycrystalline PET LaminatedWeight: Approx. 465g / 16.4ozProduct Size: Approx. 15 x 8 x 4.5cm / 5.9 x 3.1 x 1.8inBattery Type: 18650 lithium batteryNominal Voltage / Capacity: 3.7V 3600mAH (2 x 1800mAH in parallel) (Built-in battery)Solar Panel Parameters:Nominal Voltage: 5VPower: 0.9WProcess: Polycrystalline PET laminatedParameters of Aeration Pump:Air Pump Type: DC micro air pumpNoise: Less than 60dBMaximum Air flowing: 0.9L / minMinimum Air flowing: 0.5L / minCircuit Parameters:Working Voltage Range: 3.0V4.25VMaximum Working Current: 150+-10MA (high-end) 75+-10MA (low-end).Quiescent Current: Less than 500UAWhether with Light Control: Without light controlOperating Mode:1: High-end has been working (the third level)2: Medium level has been working (the second level)3: Low level open for 10 seconds and stop for 10 seconds (the first level)4: Shut downCharging Method:Method 1: USB charging (5V 1A charging)Method 2: Solar panel charging (the product is placed under outdoor sunlight)Product Scope of Application: This product is suitable for adding oxygen to fish and seafood products during outdoor fishingInstructions for Use: Connect the bubble stone to the exhaust hole and put it in the water that needs oxygenation. The solar battery faces the sun and there is no obstruction between the solar battery and the sun. Press the switch and the oxygen pump will start to work. Press repeatedly switch can choose different working modes Package List 1 x Aeration Pump1 x Accessory Kit (4Pcs)1 x English Manual1 x USB Cable Note 1. Please allow 02 cm error due to manual measurement. Thanks for your understanding. 2. Monitors are not calibrated same item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.3. This product is an electronic product. Some devices of the oxygenator can not be placed in water the diversion hole can not be blocked and more than 0.5M from the water source.4. This product is a solar product and the charging rate is related to the strength of sunlight. Regularly clean the dirt on the solar battery to improve the charging efficiency.5. Please note that the new type and old type of this product will be sent randomly and make sure you will not mind before ordering.