Small nitpick: my understanding (perhaps moreso in more sound-dependent FPS) is that pro gamers are already sound shielded.
The two headsets were 1) voice chat with your team 2) large 'surround sound' headphones that really signaled direction.
The two headsets were 1) voice chat with your team 2) large 'surround sound' headphones that really signaled direction.
More recent tournaments they seem to have integrated ear defenders with headphones with Mic's on. (Previously they had 3 headsets, the ear buds for sound, the defenders then their sponsors headsets around their necks for the mic.)