Description:

When launching minecraft for windows 10 (bedrock edition) my bluetooth headphones (Logitech Zone Vibe 125) switch to handsfree mode (meaning sound goes mono and low-quality and all other sounds are muted), which results in sound disappearing (because stereo and mono (handsfree) are different devices in windows and by default the stereo one is used). A workaround is to set mono sound device to be default for minecraft, but the sound quality is awful and the rest of sounds in the system are muted. 
So the problem is that launching minecraft shouldn't trigger that switching (for example java version won't do that and everything is okay), because minecraft doesn't even have VoIP service.

Steps to reproduce:

1) Connect bluetooth headphones to a PC (probably need a pair that uses "handsfree" mode in calls)

2) Make sure the main stereo device is set as default one

3) Launch minecraft for windows 10

Expected result: the sound still uses main device and won't trigger handsfree mode

Actual result: the headphones go in handsfree mode which results in no sound from minecraft nor from the system.

As I previously said, Java version minecraft or any other games don't trigger that mode switching.