Drill and air compressor run on the same battery. Includes a charging cord (plug cord into battery), outlets, screwdriver bits, extension cord for an air compressor, and a drill connector that lets you drill at an angle or in hard-to-reach places. All of this is kept in a cardboard box with foam cut outs for each piece. The drill is great. Beautiful and powerful. The air compressor is a bit flimsy and confusing to use as it shuts off after 30 seconds. It will inflate if you give it enough time, but I've used other portable air compressors that were much faster. The drill has a plug connector under the battery that can be plugged into a car outlet to work without a battery.