Rated voltage :12V Rated current :≤8A Rated power :≤ 100W The gas flow: 35 l/min Output pressure :150PSI Cylinder specification :22MM Noise: 80 db. Material :ABS+ alloy Line length: 3m Start the engine, plug the power joint into the cigarette lighter, install the air inlet at the tire nozzle, then press the switch , the air pump starts to work , it is easy to connect. Automatically shuts off at desired pressure. The item has a built-in dc motor, if abnormal noise occurs during work please turn off immediately.