12 volt Inflator/compressor with digital gauge and auto shut off. Set it to the pressure you want and it will shut off once it reaches that PSI. The High pressure compressor fills a full size car tire in under seven minutes. The high volume inflator will inflate a double bed air mattress in under 2 and one half minutes. Unit will also deflate when it is time to store the inflatable beds, rafts, and toys. Built in LED light.