It looks like a Z800 3D visor.
That would be correct, a Z800 VR headset, been using for about 3 years now in AH. There's a neat program called Glovepie which lets you use trackir emulation for inputs. By 1:1.5 tracking I mean't if you look right 90 degrees the view is at 120 degrees. To check 6 you turn your head left or right about 120 degrees (I find this is realistic as you usually use the mk 1 eyeball to turn the rest of the distance in real life).
There's a couple of other people use this headset or the Vuzix VR920 in AH.