I found the cool Sonos principle on paper, even if I was not about to have any understanding (did I need a bridge or not?). I bought the play: 5 and frankly I do not regret it. Who have not bought the bridge I had to plug in ethernet, and as it does also switch I could put between my freebox tv and CPL taken without trouble. Then you must install the application on the PC to configure sound systems network (the network the Sonos setup process is well described and finally relatively simple), then the application sonos control on your iPod / iPad / iPhone or Android phone to take network control. Finally, it remains only to share files or music on the PC (but that requires leave it on) or NAS drive (Freebox server box is). Now I can listen to my music and adjust the volume by controlling all from my iPad or my phone without getting up from the couch. Moreover one aa access to a whole lot of web radios, and can also involve its deezer account spotify etc ... Nothing prevents me later expand my network by purchasing another forum or simply connect a module to integrate a whole home theater sound systems to the network. In a word: Awesome!