The solar oxygenator is an ingenious air pump suitable for aquarium, small or medium ponds, etc. Working via solar power this air pump oxygenates pond water in sunny weather when oxygen levels are depleted. Simple to install, no wiring needed.   Features:   AC/DC oxygen pump, using copper movement, built-in high-quality lithium battery.   With a small size, low noise, large air volume, durable for use.   Adopts advanced single-chip intelligent control.   Constant voltage/current charging, over charge and over discharge protection, low battery alarm.   Widely used for a variety of ornamental fish, aquarium, company aquarium, small ponds.   Especially great for power outage emergency, as well as oxygen pump for wild fishing, small amounts of aquatic transport.   Instructions:   1. Long-term oxygen play mode: press the power switch (press 3 seconds) with blue indicator, oxygen begins to play;   2. Intermittent mode: press the power switch 1 time again, switched to the intermittent mode(stop for 2 seconds and work for 8 seconds);   3. Charging: when blue light turns red and enters flashing state, indicating that insufficient voltage, please charge; it can also play while charging oxygen.   Specifications:   Material: ABS   Color: Blue   Charging Input: DC 5V / 1A   Battery Capacity: 18650 3.7V / 3600mAh   Pressure: 0.15Mpa   Volume: 2L/min   Power: 0.5W   Solar panel: 6V 1.5W   USB Charging Time: 3-5 Hours   Working Time: Approx. 24 Hours   Tube Length: Approx. 100cm / 39.37in   USB Cable Length: Approx. 100cm / 39.37in   Solar Panel Size: 140 * 130 * 15mm / 5.5 * 5.12 * 0.6in   Solar Panel Weight: 210g / 7.43oz   Pump Size: 100 * 80 * 38mm / 3.94 * 3.15 * 1.5in   Pump Weight: 206g / 7.28oz   Package Size: 15 * 14 * 8cm / 5.9 * 5.5 * 3.15in   Package Weight: 563g / 19.88oz   Package List:   1 * Oxygen Pump   1 * Solar Panel   1 * Soft Tube   1 * Air Stone   1 * Charging Cable   1 * Set of Accessories   Note:   1. Clean the solar panel regularly.   2. The solar panel cannot be installed in the water, interior or under the tree.   3. The working effect will be influenced by weather, seasons, and places.   4. The solar panel must be located in where can receive max sunlight directly.