I am just wondering if you could advise a headset to use with tx2.
Currently I am using phones via hdmi->vga adapter, but to use microphone takes to detach one of usb devices to get usb mic attached.
Could you advise more convenient way?

shall I look into bluetooth direction? any particular models?

I’ve just used a wired USB headset with mic (basically gaming headsets have worked for me, no experience with bluetooth).

perhaps something like Logitech OEМ PC Headset 960 USB could do the trick,
thank you for your response

Perhaps useful is that some headsets have custom utilities, others are just standard “works without a special driver” headsets. The ones I’ve tested are stereo or 7.1 surround sound, but all are standardized interfaces without special drivers (basically low end gaming headsets).