Here's something interesting...
blueutil bluetooth utility command line
brew install blueutil
$ blueutil --paired
address: xx-xx-xx-xx-xx-xx, connected (master, -44 dBm), not favourite, paired, name: "BT5.0 Mouse", recent access date: 2020-03-31 01:02:38 +0000
address: xx-xx-xx-xx-xx-xx, not...