I don't know how they work but I would assume that the mic is not always streaming, as you say it can't be due to battery.
I do not feel comfortable to assume that there is ZERO possibility that the mic can be made to stream without the physical button pressed ...
... unless I did the work to understand how it's wired and controlled, something I don't care to do. So I'll just assume they are unsafe spy devices until proven otherwise.
I don't know how they work but I would assume that the mic is not always streaming, as you say it can't be due to battery.
I do not feel comfortable to assume that there is ZERO possibility that the mic can be made to stream without the physical button pressed ...
... unless I did the work to understand how it's wired and controlled, something I don't care to do. So I'll just assume they are unsafe spy devices until proven otherwise.
Fair enough. I certainly don't have the schematics for any of those devices made in the 2020s.