I am looking for a wireless music system, what are the good and where they buy them?

I have lots of MP3 files stored on my PC and would like to send me around the house and systems wireless speakers but I want to control what is playing even if I'm not on the PC, some kind of remote control system that could control iTunes remotely or whatever, does something like this exists?

I have 2 different wireless headsets and systems is not great. I've never seen a system as you require …;

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