Quantity: one piece Body material: ABS plastic Body color: green Built-in battery: two AA batteries Working hours: more than 10 hours Working voltage: 3 V DC Rated power: 0.5W Airflow: 0.5L/min (80cm) Outer diameter of air hole: 4.6 mm Length of the trachea: 82cm Net weight: 46g Product specifications: length 7cm x width 6.4cm x height 2cm Applicable water volume: 80-10OL (aquarium about 80cm or less) High pressure output: It produces high pressure output, ideal for protein skimmers, oxygen reactors and other equipment. High performance: High performance battery powered aquarium air pump provides ample airflow to transport the fish or isolate fish during breeding. High Quality: Made of high quality plastic, safe, non-toxic and odorless to ensure your pets’ safety. Easy to Carry: It is very convenient to carry and can be carried when fishing. Powerful Motor: Powerful motor battery powered aquarium compressor.