I used to use http://www.acrosscenter.com/ up until Monterey destroyed the Bluetooth stack on my Mac... now I wish I never had updated to it and will be very very reluctant to update again. This is the developer of across's comment about why it is no longer working: Hi, Orvar, Please consult to apple instead of us as mentioned in the previous release note. We have no choice but to wait for fix in macOS BT stack. BT stack does not work at all. What do you think we can do for it? Recent macOS versions are ******** poor quality.  I must say that after reading this thread about the problem I agree with him... This seems to be Apples fault ... and they do not care enough to fix it .. or even admit there is a problem, which I find arrogant and irritating. I can't find any official Apple comment about the problem... I used to love my development environment where I had full control from my Mac and could even use my wireless headphones :-) ... and was going to buy new MacBook Pro with the M1 chip .... but now I really find it hard to motivate ... Without working BT MacOS is crippled ... maybe I should get a Linux laptop instead, because this really sucks.