There are many companies who make headsets for xbox 360. Here are only a few headset companies I know of: Turtle Beach - The best headsets available Venom Tritton
Headsets for the Xbox 360 range from $10 to $60. The cheaper versions tend to be wired and are not manufactured by Microsoft. The more expensive headsets are wireless.
Yes.
no
Yes
The Xbox 360 headsets are quite cheap, just buy one.
It is compatible with Xbox 360, and Xbox live.
compatible mp3 players for xbox 360
Nope.
Yes you just need to plug them into your controller and you need xbox live :D
The Xbox 360 is WiFi compatible.
yes it is