I just paired my z407 speakers with 2 computers over bluetooth and was able to play audio from both computers (one at a time). Both computers remained paired and connected to the z407 and i didn't even have to reconnect to switch between computers! Not sure how other bluetooth devices, like smart phones, would handle this, but I did this between a Macbook and a Windows PC. I thought I would have to use all 3 connection options (3.5mm, USB micro, BT) to connect 3 computers but I guess I can just use bluetooth for all and control which computer is sending audio to the z407 speakers on the computer itself. Super cool!