you know those cheap wireless headphones? yea, we had a pair of those that we were going to get rid of, so i decided to put it to good use. I have several sound systems, one of which is in a different room, so i decided to make the headphones into a rca input for my amp in that room. i basically just took the headphoness totally apart and put rca jacks on it instead of speakers. its not a prety beast, but it gets the job done quite well.