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  2. 5 Home Depot Items Homeowners Need To Buy Ahead of ... - AOL

    www.aol.com/finance/5-home-depot-items...

    Ring Spotlight Cam Plus with smart security video camera is a Home Depot special buy priced at $109.99 — a 35% savings. Rigid Wet and Dry Shop Vac Price: $59.88

  3. Home security - Wikipedia

    en.wikipedia.org/wiki/Home_security

    Some forecasts project the home security market as a whole will be worth $47 billion by 2020, [12] with the DIY home security market worth $1.5 billion. [13] While the market for home security is expanding, especially with cable TV and Internet service providers introducing their own security and home automation products, it is a fragmented ...

  4. Covert listening device - Wikipedia

    en.wikipedia.org/wiki/Covert_listening_device

    Listening devices of the East German security services. 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.

  5. Closed-circuit television - Wikipedia

    en.wikipedia.org/wiki/Closed-circuit_television

    Marie Van Brittan Brown received a patent for the design of a CCTV-based home security system in 1969. (U.S. patent 3,482,037). Another early appearance was in 1973 in Times Square in New York City. [26]

  6. Walmart employees testing body cameras at some stores for ...

    www.aol.com/walmart-employees-testing-body...

    Walmart would not be the first retailer to deploy body cameras in the U.S. Earlier this year, TJX, the parent company of T.J. Maxx, HomeGoods and Marshalls, began having some employees at its ...

  7. Wireless security camera - Wikipedia

    en.wikipedia.org/wiki/Wireless_security_camera

    Analog wireless is found in three frequencies: 900 MHz, 2.4 GHz, and 5.8 GHz. Currently, the majority of wireless security cameras operate on the 2.4 GHz frequency. Most household routers, cordless phones, video game controllers, and microwaves operate on the 2.4 GHz frequency and may cause interference with a wireless security camera.

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