Teamcom

Teamcom is a communications system used by SPARTAN-II's in either combat situations or training exercises. Its main purpose is to provide communication links between the members of a team. The Teamcom is more than likely a standard-issue built-in headset, just like the headset of a regular Marine, or something very similar.

Sources

• Halo: The Fall of Reach
• Halo: First Strike
• Halo: Ghosts of Onyx