You can NOT use a small 7$ 3.5mm to USB adapter on this headset, the mic will not work. You also can't use typical docking stations 3.5mm mic plug, as they also typically are just a small USB adapter internally.
You HAVE to either user onboard audio via your motherboard, or use a USB DAC with mic.
I had tried my docking stations 3.5mm, didn't work, would have to scream into it to have it even register sound.
Same thing with 3.5mm to USB 7$ adapter.
Had to buy a USB audio DAC with a mic port. (Careful if you need to buy one of these as they are sometimes 1/4in audio ports and you will need to buy a 3.5mm to 1/4in adapter).
After getting that though, it SOUND GREAT. It is a VERY nice headset, ans almost sounds as good as my headphone only Sennheiser's I replaced my old headset as it was hurting my ears (I use them for work), and these are the same shape as my primary gaming headphones (I have a standalone mic for my home system).
If your getting these for work, know that they are 3.5mm connections, and the mic requires more power then a small USB adapter or docking station will supply.
This same issue MAY occur on motherboard audio ports if they are low quality or do not supply enough power via the 3.5mm
TLDR: If your not plugging this directly into your motherboard, you need a DAC with mic port for the microphone to work.
When getting the DAC, careful as they may be 1/4in and you will need adapter plugs. Sounds great, 100% happy with the product even with the issues I hit.