Strange compatibility

This module is only compatible with certain models of the Philips home theater, and the list is not easy to find. Finally I ordered blindly and fortunately it is compatible with the 5540 I ordered the same time. Weird thing: Even if the home theater has where to put the transmitter, behind the speakers can not be connected directly to this unit. You either cut the tips of the son or tinkering adapters.
Otherwise works well, easy to configure. Quality sound correct and very discreet case.