Get my sound to play into my microphone

[Mikocracy]

I have a TurtleBeach PX21. It plugs into a USB port for power, and into the Headphones jack for chatting and sound. Meaning that the mic and headphones both work using that 1 port. I'm trying to get the sound that plays through the headset to play into the mic so my friends I'm chatting with can hear it too.

 

[obamaseviltwin]

You are confusing me but do you want that if you speak in mic then speakers will repeat that sound
AKA playback

 

[RCguitarist]

I think he wants music or game sounds that he is listening to be broadcast into his microphones for his friends to listen to. I imagine this might annoy your friends, but just plug the headset into the pink microphone jack and play the sound through your speakers. the mic should pick up it up then.