Bio-Optic Killshades are a variety of head-worn items created by Engineers with a minimum skill of 75 in Cataclysm Engineering. Each class is offered training to create only a select variety of these, usually limited to a single type.
|cloth||Mage, Priest, Warlock|
|leather||Rogue, Feral Druid, Demon hunter, Brewmaster or Windwalker Monk|
|leather||Restoration or Balance Druid, Mistweaver Monk|
|Hunter, Enhancement Shaman|
|Restoration or Elemental Shaman|
|plate||Death knight, Warrior, Protection or Retribution Paladin|
All versions of Bio-Optic Killshades have two Cogwheel Sockets, allowing two Cogwheel gems (and only cogwheel gems) to be installed. Note that all Cogwheel gems are unique-equipped, meaning that only one of that type of gem may operate at a time.
- Master engineer goggles - goggles requiring 350 skill to make and level 62 to wear.
- Mechanized Snow Goggles - goggles requiring 400 skill to wear, 420 to craft (effectively minimum character level 65)
- Grand master engineer goggles - goggles requiring 440 skill to make and level 72 to wear.
- Retinal Armor - goggles requiring 75 Pandaria Engineering skill to make and level 87 to wear.