TRIM INC. Headset for RECEIVER CTX-491965 Military Surplus

Description

TRIM INC. Headset for RECEIVER CTX-491965 Military Surplus.
These have a small foot print compared to modern headphones but are
quite heavy.  I do believe these cans have some serious insides.
Weigh in is almost 13-oz.
The short, 34-inch cord terminates to a BNC connector.
I don’t know the history but this vintage headset looks unused.
They are untested and are being offered as is.