Teltone TLS-4, BMI gs3, Sensaphone 1104; PHONE TAP? Surveillance Line Simulator

Description

Vintage Phone Systems. Looks like a phone tap or surveillance system of some sort. Dunno...you tell me
I’ve ZERO knowledge of any item OR ASPECT of any item, I’m just saying what I can see or my opinion.
SOLD AS IS NO REFUNDS!!!!!
—-All of this was together when I purchased it at a Chicago area auction house and was told it was police evidence. I can’t confirm this, but I have seen evidence bags from time to time (long after the criminal is behind bars) at this auction house suggesting that there is probably truth behind what I was told.
The ONE power cord works on both the TELTONE TLS-4 and the BMI GS-3.
BOTH POWER ON!!! ———-
Radio Shack TAPE RECORDER plugs into the back of the TELTONE TLS-4
SENSAPHONE 1104 talks to you when powered up. “He” said hello, something about the temperature of something and then told me to Have a Nice Day in his vintage 80s robot voice.
CORDS and Battery Compartments look good minus some slight rust on a spring in the tape recorder and should provide battery power.
~~……~~……~~……THANKS FOR LOOKING AND PLEASE ASK QUESTIONS IF NECESSARY ~~……~~……~~……~~……~~
TLS-4, BMI gs3, Sensaphone 1104; PHONE TAP? Surveillance Line Simulator. Condition is "Used". Shipped with USPS Priority Mail.