The basics The Iwata Freestyle Air Battery Compressor is designed for low pressure applications (bridal makeup, temporary tattoos, cake decorating, etc.).  The benefits This compressor features a 3-speed rolling switch that ranges from 5-19 PSI. It also contains an auto-protect feature wherein the compressor will turn itself off after 9 minutes. The uses It's great to have whenever you need to be mobile or whenever you're on set.  The bottom line It works with most gravity-feed airbrushes and can certainly be used with other brands.