JoyTech solar Power Pond Oxygenator Air Pump Oxygen Pool Aquarium Fish Tank Solar Power Pond Oxygenator Air Pump Oxygen Durable plastic exterior (dont include rechargeable battery) The oxygenator helps to restore oxygen levels in any garden pond during the summer months, ensuring a clean and algae-free pond, and healthy fish and pond life. Suitable for small to medium sized ponds, Sea fishing,fishing enthusiast Waterproof, but don't throw it to water