AID TECHNICAL SYSTEMS DIVISION RADIO BUG REPEATERS, SPY, SURVEILLANCE, SPOOK

Description

AID TECHNICAL SYSTEMS DIVISION RADIO BUG REPEATERS, SPY, SURVEILLANCE, SPOOK.
what I know...
these were used in spy and sting ops to amplify a wire or other audio bug so the guys in the listening van didn't have to park too close to the target. these came from the county surplus store and are right out of the cocaine cowboy era in miami.
its a one way radio repeater. listens on one freq, transmits on another to extend listening coverage.
no idea what frequencies they are on or if they work. one is missing battery door. battery compartments are clean and they are well made.
you get whats pictured. two units, one missing battery door.