Sonos

There is a Sonos Play speaker in every bedroom or private bathroom, plus the Kitchen and Gym.

You need to be connected to wi-fi and will then find them as a speaker option, for example, if you are playing music from your ‘phone.  Alternatively you can download the SONOS app and control the speakers from there.

Either way, you do not need to touch the speakers at all, just ensure they are plugged in to mains electricity.

Different rooms can be used to play different music, or all rooms may be used to play the same music.