Listening Devices facts

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Weeks before the end of World War II a group of Russian school children presented a wood replica of the Great Seal of the U.S. to the American ambassador. Hanged up in a study in the ambassador’s residence, it contained a listening device that went undiscovered for 7 years.

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About, "The Thing." It was an American seal gifted to the American ambassador to Russia. Contained in it was one of the first examples of a passive listening device that was powered by an external radio source. It also hung in his study for 7 years.

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In my opinion, it is useful to put together a list of the most interesting details from trusted sources that I've come across answering what are the four major types of assistive listening devices. Here are 41 of the best facts about Listening Devices Amazon and Listening Devices Through Walls From A Distance I managed to collect.

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In 1945 a group of Russian school children presented a US Ambassador with a carved US Seal as a gesture of friendship. It hung in his office for 7 years before discovering it contained a listening device.
92 high ranking officials (judges, lawyers, policemen, and a state legislator) were arrested & indicted in the Chicago area for corruption; including profiting from murder, bribery, racketeering, etc. Operation Greylord involved the first listening device ever placed in a judge's chambers.
about "The Thing", one of the first covert listening devices (bugs), which was implanted in a Great Seal of the United States gifted from the Soviet Union to the United States and, being entirely passive in nature, remained hidden for 7 years.
In 2002, China discovered 27 listening devices installed in a Boeing 767 which was going to be used as the Premier's transport. The Chinese allege that the devices were installed by the CIA while the aircraft was undergoing maintenance in Texas. The CIA and White House refused to comment.
In 1945 the USSR presented the U.S. Ambassador with a carved replica of the U.S. Seal. It hung in his office for 7 years before it was discovered to have a small listening device embedded. It was one of the first "bugs" of the Cold War.
In 1945 Soviet school children presented a US Ambassador with a carved US Seal as a gesture of friendship. It hung in his office for 7 years before discovering it contained a listening device.
During the Cold War the Soviets invented "The Thing"--a listening device used to spy on the US that used no wires or power supply that made it nearly impossible to detect.

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Acoustic Kitty, a 1960's CIA operation to implant a listening device in a cat to spy on the Soviets. In the first test, the cat was released in Washington D.C. and promptly run over by a taxi.

About fumblerules, humorous literary devices that contradict themselves. Examples include “Don’t listen to any advice” and “Avoid clichés like the plague”. - source

During the Iranian Embassy Siege in the UK the sound of listening devices being implanted was masked by fake gas main repairs and airports being told to fly planes over the embassy at low altitudes. - source

The Soviet Union gave the US ambassador a carving of the US seal as a “gesture of friendship” in August 1945. It hung in his Moscow study for 7 years before someone realized it was actually a covert listening device. It’s one of the first bugs to use passive audio transmission (no power supply). - source

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The CIA attempted to place a nuclear-powered telemetry listening device on the peak of Nanda Devi (23rd tallest mountain in the world at 25,643ft) in the 1960s in order to spy on the Chinese. The expedition failed and the device was left behind and never recovered.

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In 1945 a group of Soviet school children presented a US Ambassador with a carved US Seal as a gesture of friendship. It hung in his office for 7 years before discovering it contained a listening device.

The CIA placed a listening device inside a cat and planned to have it eavesdrop on Russian diplomats. The plan failed on day one when the cat was run over outside the Russian embassy in Washington.

In 1945 the Young Pioneers (Soviet equivalent of Boy Scouts) presented the US Ambassador with a wooden seal of the U.S. to hang in his home as a gesture of friendship. Seven years later, it was found to be bugged with a listening device.

In the 1920s/30s people used elaborate listening devices called "war tubas" that worked like giant stethoscopes to detect enemy aircraft.

About "The Thing", a cold war listening device concealed in a replica of the Great Seal and gifted to the US ambassador to Russia in 1945. It hung in his office for 7 years undetected as it contained no power source of its own, instead being activated by radio waves from outside.

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In communist East Germany, every 100th person on average was an unofficial collaborator of the state terror service called "Stasi". In addition, Stasi placed listening devices into numerous homes and tortured/executed people in secret prisons - often old nazi prisons and concentration camps.

The first on-demand song played from a portable listening device was "Push Push" by Herbie Mann and Duane Allman.

To celebrate the end of WWII, a group of Soviet children gifted a US Ambassador a wooden plaque of the US Seal. It was seen as a great gesture of friendship from the Soviet Union. It hung in his office for 7 years, before discovering it contained a listening device.

The CIA placed a listening device inside a cat and planned to have it eavesdrop on Russian diplomats. The plan failed on day one when the cat was run over outside the Russian embassy in Washington.

The inventor of the Theremin, Léon Theremin, also created one of the first covert listening devices that sat undetected for 7 years in the American Embassy in Moscow.

How to detect listening devices in my home?

In the 1970s the CIA built the "Insectothopter", a robotic dragonfly built to carry a miniature listening device.

In Russia people are breaking wireless charging in their phones, thinking it is a listening device

Marvel Comics created The Blue Ear, a superhero whose listening device enables him to detect supersonic sounds, to convince a 4-year-old New Hampshire boy to wear his hearing aid after his mom wrote Marvel comics, telling them that her son told her superheroes don't wear hearing aids

A "sounding board" is a device above or sometimes behind a pulpit that redirects and projects the sound of a speaker's voice into a large room. It's the origin of the phrase we use when we patiently listen to someone, particularly when they're going over thoughts or ideas.

One of the first covert listening devices was hidden inside a gift to the US Ambassador to Moscow in 1945. The "bug" was discovered accidentally by a British radio operator, who overheard American conversations on his radio as the Soviets beamed radio waves at the ambassador's office.

A Left Ventricular Assist Device (LVAD). Most people with one don’t have a pulse. Listening to their chest, you actually hear the pump running

The Soviet Union gave the American ambassador to Moscow a wooden Great Seal of the United States that contained a secret listening device. The seal hung in the ambassador's office for nearly a decade before the bug was discovered.

The seal the United States accepted as a gift from the Russians that turned out to have a listening device in it was designed by Léon Theremin, inventor of the Theremin

About Acoustic Kitty, a CIA operation in the 1960s to turn cats into listening devices in order to spy on the Kremlin and Soviet embassies.

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