Why should I get headphones that have a microphone?
Headphones that include a microphone make taking calls more pleasant, as both parties can hear each other more clearly. The E900 series pluggable microphone design is more convenient to wear when you don't need to talk.
What is 7.1 surround sound?
This is important for games because it means that the lowest sounds (the rumble of a car engine or distant explosions in an FPS game) and the highest sounds (the rustling of leaves in an RPG) will be rendered in great detail.
