Advantage of wired over wireless speakers: One place I worked at a long time ago installed (wired) music speakers throughout the engineering area. That evening

Advantage of wired over wireless speakers: One place I worked at a long time ago installed (wired) music speakers throughout the engineering area. That evening, some engineer traced the speaker wires back to the source and disconnected them. The next day the speakers were reconnected. The following evening, in addition to disconnecting the wires at the source again, the cables were cut every three feet. This time the message was received by management and the problem went away.