How can I prevent my bluetooth headset from preempting the internal mic on connection? How can I prevent my bluetooth headset from preempting the internal mic on connection?

Every time I connect my headset I am forced to go into sound preferences to set the mic back to the internal microphone.

macOS Sierra 10.12.3
You must go to System Preferences &gt; Bluetooth, select the headset device and click the X on the right side to remove it. When you need to use the headset again, it will need re-pairing. (Screenshot below shows my Apple Trackpad, for which new batteries are imminently needed!)