Remote 3 way switches?

Hello. I have a detached garage about 75' from the house which has flood lights, and of course the house does as well. I want to connect the flood lights on both structures so I can turn them on/off from either building. So at night I can turn them on from the house, walk to the garage, and turn them off, and vice/versa. It is possible for me to run a hard wire to do this with a standard 3-way/4-way switch configuration, but I've been told that it can be done with radio frequency switches that operate wirelessly without travelers. Is this true? Can somebody in the know fill me in on the details? To clarify, the house has a simple switch at one location only. The garage has 2 locations for the lights using 3-way switches. I imagine I might have to replace both of those switches to wireless switches? There are two floods on the garage that face toward the house, and one on the house that faces the garage, so all 3 lights would come on together. Thanks much!