Sunnytech Solar Power Pond Oxygenator Air Pump Oxygen Pool Aquarium Fish Tank Sea Fishing SOLAR POWERED---- Solar energy powered, no electricity needed, just the sunshine, energy-saving and environmentally friendly product. The unit powered by a solar panel does not require any wiring, ensuring a quick and easy installation. The solar panel should be placed in a well light area to ensure exposure to sunlight, and connected to the main unit before the air stones are dropped into the pond. The solar panel absorb the sun power to drive the pump working and store extra power to the batte PERFECT SOLUTION FOR FISH POND OXYGEN----This is an eco-friendly, hassle-free, energy-saving, low-cost solution on the market for fish pond air pump. It works under directly sun no matter batteries installed inside or not. Remember to press black button on to active. Up to 1.6 L/min high air flow. Designed 90 degrees foldable solar panel, easy to adjust a best angle to absorb solar energy. The oxygenator helps to restore oxygen levels in any garden pond during the summer months, ensuring a clean LONG LASTING----Pre-assembled 3pcs AA 2000mAh high capacity rechargeable batteries inside. Because of the high capacity batteries, the pump can work for long time up to 40-50 hours once it is fully charged. The batteries inside keep the pump working no matter cloudy day, rainy day, or at night. In other words, if batteries die, and if you have the right kind of battery charger, you can charge it back up without even needing sunlight. EASY TO CARRY---- No electricity wire to hook up, wire-free. Its designed in small size and light in weight like a tin of cola. Many of our customer bring it away while sea fishing, pet fish transport, etc. There is a metal clap in the backside of the pump, you can clap it in your belt, or clap it in your fish box side. take it anywhere you want. The pump can set outside, but dont immerse to water. MULTIPURPOSE---- Widely used for adding oxygen into various aquariums, fish tank, pools, ponds, especially suitable for the power failure emergency oxygen increasing, the wild fish oxygen increasing and small amounts of aquatic transportation oxygen increasing. Ideal for remote locations that do not have access to standard electrical outlet. Keeps fish and pond-life healthy; Helps keep your pond clean and algae free. A good gift for fishing enthusiast, friends, families, parents etc.