Gen II\Gen III\Gen IV.
Utilize quick connect and disconnect features.
Include an infrared LED for use in complete darkness.
Assist in reading maps.
Warning to remind the user that the infrared LED can be seen by others who are using night vision devices.
A low battery warning light.
AA batteries which power the unit for more than 40 hours.
Maximum durability.
MIL-PREF-49313, MIL-STD-810G.
