Type-2 Energy Shield/Sangheili

The  is a protective device carried by the Sangheili of the Covenant, Separatists and finally the USR.

Description
The Energy Shield is a gauntlet worn on the wrist that then activates an energy shield from there, much like the Jackal Point Defense Gauntlet. The Type-2 is the latter variant, used during the Human-Covenant War. Though not entirely as effective, the One Layer variant had a longer battery life. The shield is slightly stronger than the three, separate layers of the Triple variant, yet it is overall weaker. As stated before, the battery life is longer, so it doesn't take as much power to use. This variant was carried by Rtas 'Vadum on his mission aboard the Infinite Succor. All in all, the Energy Shield is highly effective against bullets, but plasma weaponry will take it offline soon enough, as will high-powered explosions.

Human-Covenant War
During the Battle of Installation 04, the Infinite Succor came under attack by the Flood. Special Operations Commander Rtas' Vadumee was called on to see what had happened. One piece of equipment brought along was an Energy Shield, which 'Vadumee used effectively to block the shots from the Flood.