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Re:Closing your MacBook hardware disconnects microphone, saf... by zamfi on Tuesday March 07, 2023 @12:28PM (#35058194)
Not just Bluetooth but Wi-Fi too. It’s literally on the network while asleep and unplugged. Not 100% of the time, but very often.

Drains the battery fast too.

Re:Closing your MacBook hardware disconnects microphone, saf... by tagyro on Tuesday March 07, 2023 @12:40PM (#35058377)
This is (most probably) the Power Nap feature that periodically checks for email, update calendar events etc. You can disable Power Nap from the Settings > Battery.
Re:Closing your MacBook hardware disconnects microphone, saf... by zamfi on Tuesday March 07, 2023 @02:11PM (#35059748)
Yep! Apple doesn't seem to provide a way to disable the bluetooth behavior, but there are tools like bluesnooze that can...