BOLT Portable Aquarium Air Pump - Air Stone and Hose Included - Low Power Usage Air Aquarium Pump  (20 cm)

Aquarium Pump, below 40 DB(Normal conversation is 40-70 DB) - Air Stone and Hose Included - Low Power Usage - USB Air Pump Product size: Small size, large function. The volume of the oxygen pump is 70mm x 30mm x 30mm. (Length x Width x Height), with sufficient air single hole. Maintain a good aquarium environment Portable oxygen pump, easy to carry at any time, suitable for a variety of plugs, no need to worry about power failure ENGERGY EFFICIANT: The usb aquarium air pump, fish tank aquarium for home, uses just 0.2 watts of power. Power Outage Use: The battery air pump for aquarium, can run for over 50 hours on a 10,000 MAH battery source (not included).