1、Made of high quality ABS material, sturdy, durable and long service life. 2、Simple appearance, small size, light weight, easy to carry. 3、High performance battery powered aquarium air pump, provides sufficient airflow for transport or isolate fish during breeding. 4、Provides ideal high pressure output for protein separators, oxygen reactors and other equipment. 5、Suitable for all kinds of aquarium power outage emergency aeration and wild fishing or transport small amount of live water products, seafood oxygen. Condition: 100% Brand New Item Type: Aeration Pump Material: ABS Color: As Picture Shown Battery: 2 x AA Battery(Not Included) Vent Hole: Single Hole Rated Power: 0.5w Air Flow: 0.5L/min（80cm） Endurance: More Than 10 Hours(Using Time Difference of One Hour is a Normal Phenomena) Weight: Approx. 92g Aeration Pump Body Size(No Contain Air Outlet): Approx. 7x6.4x2cm/2.76x2.52x0.79inch Using instructions: 1. Light open the buckle, open the upper cover of the product 2. Load 2 x AA batteries according to the correct polarity and buckle the upper cover 3. Press the "ON/OFF" button ON and OFF the panel 4. Please take out the battery if it is not used for a long time 1 x Aeration Pump 1 x Air Stone 1 x Oxygen Tube