While I think some crafty Linux person could sort this out, this is not a feature of Windows and it's apps for bluetooth.
Are you thinking of writing such an app?
Bob
how do you stream audio via bluetooth usb dongles that are plugged into two computers. for the purpose of having one computer in one room streaming audio out of its speakers and then walking into another room that has a second computer and it too is streaming the same audio out of its speakers. Allowing for multiple computer connections and the ability to quickly turn off the transmitting and recieving of the radio to allow for instant mute.

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