Trigger lock function Lock-on button Blowing, Inflating, Deflating LED Job light Variable speed control by trigger 4 stage air volume, selectable according to your application One touch nozzle replacement A wide range of applications: Inflation and deflation of inner tubes, play pool and more, Blowing dust away from OA equipment or narrow spaces, Product maintenance (cleaning tools), Cleaning air filters of air conditioners etc Filter for preventing foreign material from being sucked in Vacuum function Anti-restart function Tool-less attachment change