On miui 9, every time I connected bluetooth headphones, a battery icon appeared on the status bar.
Now on miui 10 it doesn't.
I think that is a bug since I can't find an option to enable the icon again.
I have seen some video where the physical volume button was used to control media volume instead of ringer volume.
I thought that this feature was implemented in miui 10.
Is there a setting to do that?