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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. 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]

  4. The 7 Best Home Security Systems for the Money - AOL

    www.aol.com/7-best-home-security-systems...

    If you have any concerns about the security of your home, and you want to add a layer of protection and put to rest anxieties, you may want to consider a home security system. These can protect...

  5. List of wireless network protocols - Wikipedia

    en.wikipedia.org/wiki/List_of_wireless_network...

    Also, low mobility users can aggregate multiple channels to get a download throughput of up to 1 Gbit/s [2] Flash-OFDM: Flash-OFDM: Mobile Internet mobility up to 200 mph (350 km/h) Flash-OFDM: 5.3 10.6 15.9: 1.8 3.6 5.4: Mobile range 30 km (18 miles) Extended range 55 km (34 miles) HIPERMAN: HIPERMAN: Mobile Internet: OFDM: 56.9: Wi-Fi: 802.11 ...

  6. Mom explains why she installed doorbells in her kids’ rooms

    www.aol.com/finance/mom-explains-why-she...

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  7. Private WiFi | 30-Day Free* Trial | AOL Products

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    Help protect your online privacy with Private WiFi. Encrypts and anonymizes internet browsing on up to 10 devices. Try it free* now!

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