Super Silent – Our air pump is just driven by a thin piezoelectric ceramic plate, totally different from traditional electromagnetic air pump, No EMI, No motor, No shaft, No other troublesome mechanisms, which makes it super compact, super quiet(<35db), light weight and long service life. Low Power Consumption - This air aquarium pump uses no transmission device to keep away from friction loss, provides a drift rate of 0.5l/min with 1w power, it features low power consumption and high energy saving, perfect for aquariums with capacity up to 50 litres. Compact Design and Space Saving - The cute round fish tank air pump is small, light weight and portable, equipped with a powerful suction cup, you'll be able to easily hang it on the tank wall, it won’t take up any place on your desk. High-Efficiency Air Stone - Oxygen air pump is stable performance, is ideal for small and medium-sized fish tank plus oxygen. With a good air stone, puts off a nice spread of bubbles at a pretty good pace, with a view to makes your fish, betta or shrimp like it. Useful tool to make your fish live healthier - This Aquarium Air Pump provides dependable airflow and dissolved oxygen in water, makes sure that your fishes live in healthy and stable environment.If there's anything flawed, don't hesitate to contact us very quickly, we can respond within 24hrs and do our best that will help you out.