I really liked the compressor, it runs on battery power, so you can safely take it with you, no need to look for an outlet. Great for inflating rubber boats, balls, and bike tires. It is also not a problem to pump up the tires of a passenger car, I think I can’t cope with large tires. There is a screen with pressure readings, no need to worry about what you are pumping, it turns off when the set readings are reached.