About the X1 Headphones:
Ear Force X1 amplified headphones give serious gamers the ultimate competitive
edge by combining Xbox Live chat and stereo game audio into an immersive sound
experience.

X1's integrated design overcomes the limitation of communicator headsets that
block game sound from one ear and eliminates voice chat interference caused 
by the headset microphone picking up sound from external speakers.

Pump up the volume without disturbing friends, family or neighbors. Hear 
every nuance of the game - from an opponent sneaking up behind you to your
teammate's voice right next to you. Trash talk online. Block out distractions.
It's everything you need for an amazing gaming experience.
______________________________________________________________________________