Rechargable USB lithium battery aquarium air pump for water fish tank

1.The waterproof lithium battery oxygen pump is X4 core protection. It means that it can be used in the rain and can be used in water. It does not mean that there is no water. It can be used in short-term submersion and cannot be used in long-term water. It is designed to be wild fishing in rainy weather or accidentally dropped in. Unavailability occurs due to water.

2. The oxygen pump that has been strayed into the water will not produce oxygen after a period of time. This is related to the working principle of the oxygen pump. Take it out of the water and wait for a while to use it normally.

3. The oxygen pump that has been strayed into the water will enter the water. After the water is removed, it is recommended to set up and empty the water to avoid rusting caused by water vapor inside for a long time.