1 / 6Features: The oxygen pump is equipped with a USB interface. The mute pump is almost no sound and is suitable for the quiet environment to feed fish, such as living room, bedroom, outdoor fishing and so on. With a small size, it is easy to carry around and suitable to use outdoors. Low power can save energy and it is more economical. Producing more bubble and increase more oxygen. Parameter: Type Oxygen Pump Material ABS Model SB-168/268/368/468/568 Input voltage 110-240V AC 50Hz Shell material ABS Weight 300-1800g Output 3-20L/min Power 1-12W Battery capacity 1100-8800mAh Tank size 30-300L Feature 1 Silent Feature 2 Rechargeable Application Fish tank and Aquarium Contacts