I used my old PS4 to record a message and listen to it, I didn't use the extension cable for this, the mic and the headset audio is really clear. I opened OBS to record audio and test out the overall sound, I was listening to music on youtube and OBS was picking that audio up through the microphone as well as my default audio for desktop, I had to fiddle with some sound settings within windows 10 to boost the audio coming from the mic as it was initially quite low, this is when I realised the issue with the mic, even if I mute the mic, the audio still came through, but as long as the mic isn't plugged in the there is no isuse (obviously). The only downside is the microphone, I don't know if the issue is with the extension cable itself as this issue only seems to occur on PC (at least during my testing). While testing the headset prior to wrapping, the headset quality is really good and is quite snug fit (which will be great for my nephew, overall it's incredibly comfortable.

Got this headset for my nephew as a Christmas present.

Arctis 1 steelseries