You can if you make sure than when one button is pushed no other sound will be activated if another button is pushed. You can do it by using logic gates.Basically you push a button and hear a prerecorded message. The 6 devices have seperate speakers but I would like to use 1 speaker in a central location on the project. While they should'nt all be playing at once, someone may hit more that one button at a time. Can they be wired to use the same speaker?