A listening device would need electricity and probably an antenna. Could be easy to use one wire for both. Clearly the light switch is the most obvious suspect. Maybe a screw is a microphone, the flat head crease hiding a micro mesh. This person clearly isn’t paranoid. They are just hiding holes they punched in the drywall.
The Thing, also known as the Great Seal bug, was one of the first covert listening devices (or “bugs”) to use passive techniques to transmit an audio signal. It was concealed inside a gift given by the Soviet Union to W. Averell Harriman, the United States Ambassador to the Soviet Union, on August 4, 1945. Because it was passive, needing electromagnetic energy from an outside source to become energized and active, it is considered a predecessor of radio-frequency identification (RFID) technology
So 80 years ago they had the technology to listen to you without electricity, it could be anywhere, even in the framing. I would just remove some sample from the frames, or maybe drill holes in it randomly to find my thing
A listening device would need electricity and probably an antenna. Could be easy to use one wire for both. Clearly the light switch is the most obvious suspect. Maybe a screw is a microphone, the flat head crease hiding a micro mesh. This person clearly isn’t paranoid. They are just hiding holes they punched in the drywall.
It seems you haven’t heard about “the Thing”:
So 80 years ago they had the technology to listen to you without electricity, it could be anywhere, even in the framing. I would just remove some sample from the frames, or maybe drill holes in it randomly to find my thing