A:Answer The prior explanation was irrelevant to the question. If hanging the speakers from the ceiling, where must the transmitter boxes be placed? One said they must be within line of site and 15 feet of the main speaker of the tv. This makes no sense since the transmitter boxes are so big and the speakers are so small. In the end, these boxes defeat the purpose of the small speakers. Secondly, I ordered white speakers that came with black transmitters. Go figure? Not pleased so far.