How can I have sidetone with in ear headphones and a standalone mic?

[Blackdima]

I need a mic to talk to friends when I am playing games, but I hate using over the ear headsets; for me, they are uncomfortable, they give me a headache, and they hurt my ears after a while. My problem is that over the ear headsets are the only way I know of to have a sidetone, I cannot use a headset without a sidetone. I would much rather use my earbuds/in-ear headphones.

My question is what do I need to be able to use in-ear headphones and still have a sidetone so I can hear myself? I tried to figure it out myself but I know absolutely nothing about this sort of thing. I don't really want to spend a lot on this, whatever is cheapest will be good enough for me.

[Angular Mo]

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