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  2. 8 Best Video Doorbell Cameras Under $60 - AOL

    www.aol.com/finance/8-best-video-doorbell...

    PASO Doorbell Camera (Wireless) Cost: $45.99. Enjoy 2-way audio and video, and intuitive motion detection that can distinguish between a person, and say, an animal or an object. You can even turn ...

  3. Video door-phone - Wikipedia

    en.wikipedia.org/wiki/Video_door-phone

    Video door-phone. A video door-phone (also known as a video door entry or video intercom) is a stand-alone intercom system used to manage calls made at the entrance to a building (residential complex, detached family home, workplace, etc.) with access controlled by audiovisual communication between the inside and outside. The main feature of ...

  4. Door phone - Wikipedia

    en.wikipedia.org/wiki/Door_phone

    Video door phone indoor terminal.. Going a little further in time, we find video door phones featuring a video installation apart from the classical audio. In these cases, the intercom plate has the same structure as the previous version but features a video monitor connected to a surveillance camera that allows inspecting the person who pressed the button and part of the surrounding area.

  5. Smart doorbell - Wikipedia

    en.wikipedia.org/wiki/Smart_doorbell

    The smart doorbell lets the home owner use a smartphone app to watch and talk with the visitor by using the doorbell's built-in high-definition infrared camera and microphone. They can be either battery operated or wired. [1] Some smart doorbells also allow the user to open the door remotely using a smart lock. [2]

  6. Wireless intercom - Wikipedia

    en.wikipedia.org/wiki/Wireless_intercom

    A wireless intercom is a telecommunications device that enables voice communication without the need to run copper wires between intercom stations. A wired intercom system may incorporate wireless elements. There are many types of wireless intercom systems on the market. Most wireless intercom systems communicate by radio waves using one of the ...

  7. Ring (company) - Wikipedia

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

    A second-generation model, Ring Doorbell 2, was released in 2017, with updated hardware and a 1080p camera with improved low-light performance, that does not rely solely on Wi-Fi, unlike the original model. [44] The Ring Doorbell Pro interoperates with Amazon Alexa to play prerecorded greetings to visitors and allow visitors to leave a message ...