PC VOICE CONTROL: ANY THOUGHTS ??

I am not sure if I am on the right forum for this query but will give it a shot anyway. I would like to set up my PC to be voice controlled as with the smart phones.
However, I have not the foggiest idea as to what would work the best in order to do so. I run Windows 10 & I would guess that Cortana would have to be my choice?
My PC does not have a voice cam, so would have to probably use a headset. My question there would be : if so what works the best : 3.5mm socket or USB?
Is it possible to have a VOX system whereas one would not have to use the mouse to activate the Cortana Mike? Would a desk mike work better than headphones?
A lot of questions here but if there is someone here that uses such a setup, I would appreciate knowing what all is involved & what I might need to get started.
Thanks much for any info..................

Moved to correct forum.

photolady; would you be so kind & tell me what forum was the correct one so that I can trace it ?? Thank you ....

I found it ... thanks again ...