Thanks for the help. I ordered the Mini on Black Friday. When it arrived I set it up with my wife's smartphone and streamed from Amz Music Unlimited. I then tried connecting Bluetooth devices, some devices connected but some other known good devices would not connect. The Mini would not reconnect to Unlimited again despite resets and resetups. At that point I gave up and returned the Mini.
I'm now using an Echo Link (also purchased on Black Friday), it too needs a smartphone for initial setup, a Fire tablet running the latest Alexa SW would not connect and complete setup. Once setup however control via the Fire tablet and general operation has been flawless. All my Bluetooth devices connect.