This is a system that few know, but it really is a superior system. With this system, you can create a wireless configuration in another space wirelessly by expanding your existing set. Advantage: You have a B&O MasterLink CD player in the living room, you want to connect a set of speakers in the kitchen / study room or bedroom, but you don't want to run cables. You will then connect 1 transmitter to the CD player and 1 receiver in the kitchen / study room or bedroom, connect active speakers here from B&O Beolab speakers, or connect speakers like Beolab 2000 or 3500 and then you can enjoy your music live in room. 1x transmitter 1 1x receiver 1 1x MasterLink cable 2x power cables