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  2. Covert listening device - Wikipedia

    en.wikipedia.org/wiki/Covert_listening_device

    The recording device was concealed on a person Thatcher had previously approached for help in the crime. [citation needed] Electronic bugging devices were found in March 2003 at offices used by French and German delegations at the European Union headquarters in Brussels. Devices were also discovered at offices used by other delegations.

  3. Voice user interface - Wikipedia

    en.wikipedia.org/wiki/Voice_user_interface

    A voice command device is a device controlled with a voice user interface. Voice user interfaces have been added to automobiles , home automation systems, computer operating systems , home appliances like washing machines and microwave ovens , and television remote controls .

  4. The Thing (listening device) - Wikipedia

    en.wikipedia.org/wiki/The_Thing_(listening_device)

    The device, a passive cavity resonator, became active only when a radio signal of the correct frequency was sent to the device from an external transmitter. This is referred to in NSA parlance as "illuminating" a passive device. Sound waves (from voices inside the ambassador's office) passed through the thin wood case, striking the membrane and ...

  5. Voice-operated switch - Wikipedia

    en.wikipedia.org/wiki/Voice-operated_switch

    In telecommunications, a voice operated switch, also known as VOX or voice-operated exchange, is a switch that operates when sound over a certain threshold is detected. [1] It is usually used to turn on a transmitter or recorder when someone speaks and turn it off when they stop speaking.

  6. Cellphone surveillance - Wikipedia

    en.wikipedia.org/wiki/Cellphone_surveillance

    Cellphone surveillance (also known as cellphone spying) may involve tracking, bugging, monitoring, eavesdropping, and recording conversations and text messages on mobile phones. [1] It also encompasses the monitoring of people's movements, which can be tracked using mobile phone signals when phones are turned on.

  7. Amazon's secret hidden device page is bursting with tech ...

    www.aol.com/lifestyle/amazons-secret-hidden...

    On any given day, the retail giant adds and removes deals from this secret hub on a handful of Echo smart devices, Fire TV video streamers and Kindle e-readers — and the savings are great.

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