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  2. Smart doorbell - Wikipedia

    en.wikipedia.org/wiki/Smart_doorbell

    A smart doorbell is an internet-connected doorbell that notifies the home owner on his or her device (smartphone or any other gadget) when a visitor arrives at the door. It activates when the visitor presses the button of the doorbell, or alternatively, when the doorbell senses a visitor with its built-in motion sensors. The smart doorbell lets ...

  3. Ring (company) - Wikipedia

    en.wikipedia.org/wiki/Ring_(company)

    The "Ring Chime" accessory is a unit plugged into a power outlet to play the doorbell's chime. The "Chime Pro" is an extended version that also doubles as a wireless repeater for Wi-Fi networks. [46] In November 2020, Amazon announced the recall of 350,000 Ring doorbells in the United States and 8,700 in Canada due to a potential fire risk. [47]

  4. Doorbell - Wikipedia

    en.wikipedia.org/wiki/Doorbell

    Doorbell mechanism from 1884 in Andrássy Avenue, Budapest Antique mechanically operated shop doorbell on a torsion spring. William Murdoch, a Scottish inventor, installed a number of his own innovations in his house, built in Birmingham in 1817; one of these was a loud doorbell, that worked using a piped system of compressed air. [1]

  5. Google Nest - Wikipedia

    en.wikipedia.org/wiki/Google_Nest

    In 2021, Google announced the battery-powered Nest Doorbell, while the original Nest Hello was rebranded as the Nest Doorbell (wired). [67] In October 2022, the 2nd generation Nest Doorbell (wired) was launched in the US, adding back a number of features that were missing from the Nest Doorbell (battery) even when wired, including 24/7 ...

  6. Electric bell - Wikipedia

    en.wikipedia.org/wiki/Electric_bell

    Older electric doorbell. An electric bell is a mechanical or electronic bell that functions by means of an electromagnet.When an electric current is applied, it produces a repetitive buzzing, clanging or ringing sound.

  7. Richard Long (sound designer) - Wikipedia

    en.wikipedia.org/wiki/Richard_Long_(sound_designer)

    Richard Long (1933–1986) was an American sound designer. [ 1 ] [ 2 ] He is known as the preeminent sound designer of the disco era, having installed systems at clubs including Paradise Garage , Dorian Gray , Studio 54 , City Hall, Max's Kansas City and Roxy Roller Rink.