Bose 700 takes 5 minutes to be added as a sound device over bluetooth to windows 10
Turning on bose 700
says "connecting to <PC NAME>"
repeat maybe 5 times
then it says "ready to connect"
result is that the PC (running windows 10) does not have the paired bose 700 connected at the end of this process (expected to auto connect since it was connected previously).
so I manually (from windows) connect bose 700 over bluetooth.
sometimes it takes a few minutes to connect, and sometimes even though it was connected successfully and it is added to windows bluetooth devices list,
it does not appear under the windows audio devices until many minutes are passed, and sometimes even a long wait isn't enough and it never adds to windows audio devices at all.