AlexCyKwanMute means that it has an inline mute switch on the cable. Kinda helpful if you need to mute your mic and dont want to tab out of whatever it is you are doing. Omnidirectional means that it picks up sound from all around the mic instead of just one direction. This is only helpful if multiple people are talking, but is generally worse because it will pick up more background noise such as computer fans or keyboards.
derhpAhh, thanks bro. If its liek that, more noise cancellation is better, since hearing a mechanical keyboard "clacking" everytime i type can be annoying aha.