Efficient Oxygen Supply: The aquarium air pump rapidly increases dissolved oxygen in the water, promoting a healthier tank environment and improving the survival rate of live fish with reliable, effortless performance. Longlasting battery with USB charging: Largecapacity battery provides extended use, and USB charging ensures convenient power options to keep airflow steady for your aquarium needs. Portable and durable design: Sturdy nonslip shell and a compact form factor make it easy to store in a bag or toolbox, enabling smooth transport and use wherever needed. Quiet operation: Optimized motor drive system keeps noise below 35 decibels, allowing you to maintain undisturbed aquatic life in quiet spaces. Key attributes: function — aerates water to raise dissolved oxygen; compatibility — designed for fish tanks; size — compact and portable; material — nonslip shell for durability; performance — steady airflow with long battery life. Use scenarios: At home during power outages or maintenance, providing reliable aeration with battery power. Between tanks or during transport, thanks to its portability and compact size. In small or portable aquarium setups where silent operation is beneficial, such as bedrooms, living rooms, or offices.