[Extremely Quiet]: The low-noise diaphragm pump is a fully energy-saving copper core for rechargeable oxygen pumps, which saves electricity and provides an extremely quiet feeling. It uses a successful design composed of glue dots to reduce vibration transmission. [Powerful Motor]: The maximum airflow that the aquarium air pump can receive from the aquarium air pump is 3000 ml/min, which ensures a stable airflow for the aquarium pump. Our aquarium air pump is small and does not take up much space. [Easy to Use]: The USB oxygen pump is fixed on the side of the aquarium by the rear clamp to prevent it from falling. It supports USB charging. The USB interface can charge the battery directly via a computer or external power source. 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 outages in aquariums and wild fishing, or for transporting a