These Air pumps are not waterproof, and should never get wet or submerged.

This tiny, super quiet air pump is great for any small to medium aquarium tanks. It is USB powered, which is great incase of a power outage, you can get a power bank and attach the air pump for emergency.
Uses extremely low wattage/power.

Air output is a bit lower than regular standard air pumps, but this allows it to run a lot quieter and use less electricity. These air pumps are best suited to run small sponge filters or a single air stone. Great for shrimp and betta tanks, or making sure oxygen is in your larger aquariums.

Package includes:

1× USB Aquarium Nano Air Pump

1× 1m Oxygen Tubing

1× Air Stone

1× Aluminum Clip