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. It uses a successful glue dot design to reduce vibration transmission 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 does not take up much space. Easy to use: The USB oxygen pump is attached to 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 through a computer or an 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 failures in aquariums and wild fishing, or transporting a small amount of live aquatic products and seafood aeration. You can take it with you when fishing. The powerful battery-powered aquarium air pump provides enough airflow to transport fish or isolate them during breeding The maximum airflow the aquarium air pump can receive is 3000ml/min, which ensures the stable airflow of the aquarium pump. Revitalize your aquarium. Make your aquatic life more lively