The X3 headphones include a dynamic talkback expander that automatically
amplifies Xbox Live chat during loud moments in your game. Since this is 
a revolutionary new feature in gaming headphones, it takes a bit of getting 
used to. 

HOW THIS WORKS:
If you were to turn down the headphone volume control all the way and turn 
up the chat volume on the "puck", there would be no game volume, but you 
would hear chat. In this mode, the dynamic talkback expander is doing nothing
because there's no game audio.

If you turn up the game volume and the game sound is soft, there won't be any
change in the chat level. However, if the game volume gets louder, the chat 
sound level would normally be drowned out by the game. That's where the
dynamic talkback expander kicks in!

As the game audio increases, the expander boosts the chat volume so it keeps
up with the game level and you can hear what everyone is saying. When the 
volume quiets down again, the chat level returns to the lower volume setting.

To properly set the expander function, first turn down the headphone game 
volume control so there's no game audio. Then adjust the talkback volume 
control on the "puck" so you can hear the chat voices at a comfortable level.
Now, turn up the game volume and the chat volume increases as the game gets
louder, just as if the talkback volume control is being automatically turned
up along with the game level. 

Note that if the talkback volume on the "puck" is set too loud, the expander 
might increase the volume so much that the voices will distort. If that
happens, just cut back on the talkback "puck" volume to adjust the level 
below distortion.
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