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During World War II, the Nazis took over a Berlin brothel, Salon Kitty, and used concealed microphones to spy on patrons. Also during the war, the British used covert listening devices to monitor captured German fighter pilots being held at Trent Park. In the late 1970s, a bug was discovered in a meeting room at the OPEC headquarters in Vienna.
The device, embedded in a carved wooden plaque of the Great Seal of the United States, was used by the Soviet government to spy on the US. On August 4, 1945, several weeks before the end of World War II , a delegation from the Young Pioneer Organization of the Soviet Union presented the bugged carving to Ambassador Harriman, as a "gesture of ...
[1] [2] Lavrentiy Beria, head of the KGB, had used this Buran device to spy on the U.S., British, and French embassies in Moscow. [ 2 ] On 25 August 2009, U.S. patent 7,580,533 was issued for a device that uses a laser beam and smoke or vapor to detect sound vibrations in free air ("Particulate Flow Detection Microphone based on a laser ...
A report from the U.S. PIRG Education Fund found toys that "spy" on children are on the rise in the U.S. ... Smart toys can include anything with a camera, microphone, internet connectivity ...
A wireless microphone, or cordless microphone, is a microphone without a physical cable connecting it directly to the sound recording or amplifying equipment with which it is associated. Also known as a radio microphone , it has a small, battery-powered radio transmitter in the microphone body, which transmits the audio signal from the ...
Court reporter tests his stenomask. [1]A stenomask is a hand-held microphone built into a padded, soundproof enclosure that fits over the speaker's mouth or nose and mouth. . Some lightweight versions may be fitted with an elastic neck strap to hold them in place while freeing the user's hands for other tas
Those include noise-cancellation features, directional microphones, rechargeable batteries, fall detection and stream soothing sounds. Ongoing professional support and long trial periods are ...
The term referred to any small microphone that could be hooked into the buttonhole of the lapel of a coat. The lapel microphone offered freedom of movement. [2] An early use of the microphone supported by a strap around the neck: telephone operator. The term lavalier originally referred to jewelry in the form of a pendant worn around the neck ...
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