Features:◆ Small size, high energy, low noise, long life, AC / DC dual-use◆ With a belt buckle,easy to carry◆Stable performance,strong volume◆Built-in high quality rechargeable lithium battery,cycle life>=500 times◆Less than 150mA ultra-low power,full power continuous supply of oxygen for more then 48 hours◆External 5V power supply input,can simultaneously oxygen and charging,longer batter life◆Using waterproof technology, effective protection of the product safety.◆ Fish market,fish transport oxygen,fishing and other outdoor places of fish of oxygen◆Uses: Emergency power for indoor aquanum oxygen, aquatic markets, fish transport oxygen supply, field fishing and other places of fish oxygen supply. Specification:1. Cell standard:Cell type: 18650 lithium batteryNominal voltage / capacity: 3.7V 3600mAH (two 1800mAH in parallel)2. Solar panel parameters:Solar voltage: 6V / 1.5WSolar current: 420MAProcess: Polycrystalline solar glass plate3. Oxygen pump parameters:Air pump type: DC miniature air pumpRated voltage: 3.0VMaximum current: 450MANoise: 60dBWaterproof: IP44Minimum air flow: 0.5L-0.9L / minSize: 138x80x38mm/5.4x3.1x1.5in4.Circuit parameters:Working voltage range: 3.0V-4.25VMaximum working current: less than 500MADischarge protection voltage: 3.0VCharging protection voltage: 4.25VCharging input: DC 5V / 1ACharging time: 5-6HWorking time: about 48 hoursProduct weight: 0.63KgPacking size: 15.3 * 14.5 * 82CM5. Working mode:Mode 1: High-speed 28HMode 2: Low-speed 48HMode 3: Low speed 96H opens for 10 seconds and stops for 10 seconds.6: ShutdownWork instructions: LED on display shows the remaining battery power, it is displayed in 5 levels, the last LED flashes at low power (3.2V)7. Charging method:Method 1: Solar Panel Charging Time: 15HMethod 2: USB charging (1A charging) Charging time: 5HCharging indication: During the charging process, the LED lights indicate the charging process, and the 5 LEDs are fully lit when fully charged. Package Includes:1 x Solar panel1 x Air pump1 x Hose2 x Air stone1 x Check valve1 x Charging cable1 x Hanging buckle1 x Screw Instructions:Connect the bubble stone to the exhaust hole and put it into the water body that needs to be oxygenated. The solar cell is facing the sunlight. There is no obstruction between the solar cell and the sunlight. Press the POWER switch and the oxygenation pump starts to work.1. This product is an electronic product. The aeration device cannot be placed in water, and the diversion holes cannot be blocked.2. This product is a solar product. The charging speed is related to the intensity of sunlight. Regularly cleaning the dirt on the solar cell can improve the charging efficiency. Note:1. This product is an electronic product. The aeration device cannot be placed in water, and the diversion holes cannot be blocked.2. This product is a solar product. The charging speed is related to the intensity of sunlight. Regularly clean the dirt on the solar cell to improve the charging efficiency.3. Please allow 0.5-1cm differences due to manual measurement.4. Due to the light and screen difference, the item's color may be slightly different from the pictures.