[Extremely Quiet]: The low-noise diaphragm pump is a fully energy-efficient copper core for rechargeable oxygen pumps, which saves electricity and provides an extremely quiet feeling. He uses a successful design made up of glue dots to reduce the transmission of vibrations [Powerful Motor]: The maximum airflow that the aquarium air pump can receive from the aquarium air pump is 3000ml/min, which ensures stable airflow for the aquarium pump. Our aquarium air pump is small and only takes not much space. [Easy to Use]: The USB oxygen pump is attached to the side of the aquarium by the back clamp to prevent it from falling. It supports USB charging. The USB interface can charge the battery directly through a computer or a source external power supply. The other option is to charge the battery directly from a household outlet with a direct plug. [Wide Application]: The portable aquarium air pump is suitable for emergency ventilation of various power failures in aquariums and wild fishing,
