randomly mute the bluetooth mic on headset

Hello yh1224,

Does this happen with other mics? If so, let's try to narrow this down and isolate it more by testing in safe mode and a new user account.

Safe mode prevents certain software from opening and completes great checks on startup. More information on starting to safe mode and steps to take after starting there can be found here: How to use safe mode on your Mac - Apple Support

"Apple silicon

1. Shut down your Mac.
2. Turn on your Mac and continue to press and hold the power button until you see the startup options window.
3. Select your startup disk, then press and hold the Shift key while clicking “Continue in Safe Mode”.
4. Log in to your Mac. You may be asked to log in again.

Intel processor

1. Turn on or restart your Mac, then immediately press and hold the Shift key as your Mac starts up.
2. Release the key when you see the login window, then log in to your Mac. 
3. You may be asked to log in again. On either the first or second login window, you should see "Safe Boot" in the top right-hand corner of the window."

If the resolution change continues after the steps from safe mode, create a new user account (administrator) to see if the behavior happens there. This will let us know if it is system-wide or something within your user account: Set up users, guests, and groups on Mac - Apple Support

Delete a user or group on Mac (to remove the test account once completed)

Let us know what you fin

Cheers!

Hey there, yh1224!

When you check the microphone in System Preferences > Sound, are you making sure that the input is that Bluetooth headset?

You can also try resetting the headphones and testing to see if that helps.

Regards.

Hi yh1224,

Thanks for trying these steps.

At this point, to continue investigating this concern we recommend contacting Apple Support here:

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