Ring (company) in the context of "Electric power control"

Amazon.com, Inc., doing business as Amazon, is an American multinational technology company engaged in e-commerce, cloud computing, online advertising, digital streaming, and artificial intelligence. Founded in 1994 by Jeff Bezos in Bellevue, Washington, the company originally started as an online marketplace for books, but gradually expanded its offerings to include a wide range of product categories, referred to as "The Everything Store". Amazon has been described as a Big Tech company.

The company has multiple subsidiaries, including Amazon Web Services (or AWS), providing cloud computing; Zoox, a self-driving car division; Kuiper Systems, a satellite Internet provider; and Amazon Lab126, a computer hardware R&D provider. Other subsidiaries include Ring, Twitch, IMDb, and Whole Foods Market. Its acquisition of Whole Foods in August 2017 for US$13.4 billion substantially increased its market share and presence as a physical retailer. Amazon also distributes a variety of downloadable and streaming content through its Amazon Prime Video, MGM+, Amazon Music, Twitch, Audible and Wondery units. It publishes books through its publishing arm, Amazon Publishing, produces and distributes film and television content through Amazon MGM Studios, including the Metro-Goldwyn-Mayer studio it acquired in March 2022, and owns Brilliance Audio and Audible, which produce and distribute audiobooks, respectively. Amazon also produces consumer electronics—most notably, Kindle e-readers, Echo devices, Fire tablets, and Fire TVs.

Home automation or domotics is building automation for a home. A home automation system will monitor and/or control home attributes such as lighting, climate, entertainment systems, and appliances. It may also include home security such as access control and alarm systems.

The phrase smart home refers to home automation devices that have internet access. Home automation, a broader category, includes any device that can be monitored or controlled via wireless radio signals, not just those having internet access. When connected with the Internet, home sensors and activation devices are an important constituent of the Internet of Things ("IoT").

A smart doorbell is an internet-connected doorbell that notifies the home owner on their 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 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. Some smart doorbells also allow the user to open the door remotely using a smart lock.