A:AnswerNot at all. Pretty lightweight for its size. I play several online games and voice is a must so I have these on for many hours on some days and I have no problems with the comfort.
A:AnswerMost headphones don't have this man, but you can always install software that allows you to do this, like OBS (recording software) that allows you to monitor your mic input.
A:AnswerYou may try adjusting the microphone volume level on your end or your mic may also be picking up the audio from your headset and relaying it back, so you could also try to adjust the headset’s volume.