Thanks for the assistance but bluetooth connection between my iMac and the H90 is still not working.  I’m using the latest software on H90 and latest H90 Control.  I configured everything fine w/ my iPad, and it works properly on it, but not so with my iMac (running Monterey 12.7.1) which is what I’d greatly prefer using.  Here is what happens:

I follow the directions for Bluetooth connection as provided.  I enable Bluetooth on the H90, then click the Bluetooth icon on H90 Control on my iMac  The H90 shows up as available in my Bluetooth Configuration window.  I click the “connect button”, and the button temporarily shows it as “connecting”.  However, the H90 Bluetooth shuts off, and the H90 no longer shows up on my Bluetooth configuration as being available.

Thanks!