I use the speaker to an analog stereo system, use it as an Internet radio and to music from your mobile phone / PC to stream and for improved sound on the TV. The installation of the loudspeakers can be no manual using the AirStudio + app (have the Android version used) very quickly accomplish: speakers are plugged in, and the app directs a through installation. Anyone wishing to use the speakers via WLAN, should a WPS-capable router or its WLAN key have at hand, then the matter in less than 5 min is done. To test the sound, I have different music genres streamed to the speaker, from rock to film music to classical music. The speakers have here a very natural sound, the bass is powerful, treble clear and clean. About the AirStudio + app can be via TuneIn Preassign (with somewhat more complicated search) the 5 hardware buttons of the speaker with transmitters; since I've done one, I hardly use the app, but start the music channel via the hardware buttons. Switching between different audio sources is also done via the hardware buttons: Here, you can quickly switch between AUX-IN (RCA connector = stereo), optical input (in my TV) or MP3-Link (3.5 mm jack for mobile phone etc .) choose. Because playlists on the phone to create a fair Friemelei is, do I usually play lists on the PC together and then streame from Windows Media Player on the speaker - the Philips Media Manager software was me here to unintuitive, as I am so wanted to deal with. Conclusion: A speaker with quality design and excellent sound and functionality; Software side has Philips here but still room for improvement (Media Manager and AirStudio + app).