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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.
A covert listening device, more commonly known as a bug or a wire, is usually a combination of a miniature radio transmitter with a microphone. The use of bugs, called bugging, or wiretapping is a common technique in surveillance, espionage and police investigations. Self-contained electronic covert listening devices came into common use with ...
Laser microphone. A laser microphone is a surveillance device that uses a laser beam to detect sound vibrations in a distant object. It can be used to eavesdrop with minimal chance of exposure. The object is typically inside a room where a conversation is taking place and can be anything that can vibrate (for example, a picture on a wall) in ...
The microphone that Cardi B recently threw at a concertgoer in Las Vegas is now up for auction on EBay. The flying mic reportedly belongs to an audio production company in Vegas owned by Scott ...
Electro-Voice ( EV) is an American manufacturer of audio equipment, including microphones, amplifiers, and loudspeakers, focused on pro audio applications such as sound reinforcement and commercial and residential audiovisual installations. As a subdivision of Bosch Communications Systems Inc. since 2006, Electro-Voice markets products for use ...
Surveillance tools. Surveillance tools are all means of technology provided and used by the surveillance industry, police or military intelligence, and national security institutions that enable individual surveillance and mass surveillance . Steven Ashley in 2008 listed the following components used for surveillance: [1] [2] Primarily electronic.
Hats and banners are among the other Trump merchandise for sale outside of Milwaukee's Fiserv Forum during the Republican National Convention on July 16. (Spencer Platt/Getty Images) (Getty Images)
An electret microphone is a microphone whose diaphragm forms a capacitor (historically-termed a condenser) that incorporates an electret. The electret's permanent electric dipole provides a constant charge Q on the capacitor. Sound waves move the diaphragm, changing the capacitance C, which produces a corresponding voltage change across the ...