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  2. Ray J - Wikipedia

    en.wikipedia.org/wiki/Ray_J

    In November 2017, Ray J co-founded a direct-to-consumer electronics brand called Raycon. Raycon sells wireless audio products such as earbuds and headphones. [34] Ray J oversees brand and strategy. [35]

  3. AirPods - Wikipedia

    en.wikipedia.org/wiki/AirPods

    AirPods are wireless Bluetooth earbuds designed by Apple. They were first announced on September 7, 2016, alongside the iPhone 7. Within two years, they became Apple's most popular accessory. [4] [5] AirPods are Apple's entry-level wireless headphones, sold alongside the AirPods Pro and AirPods Max .

  4. Take 20% Off Raycon Earbuds, Headphones and Speakers ... - AOL

    www.aol.com/entertainment/20-off-raycon-earbuds...

    Raycon has an amazing selection of best selling earbuds, headphones and more which rival the most popular brands — but best of all, they’re significantly less expensive. And right now, you can ...

  5. Wireless telegraphy - Wikipedia

    en.wikipedia.org/wiki/Wireless_telegraphy

    Wireless telegraphy or radiotelegraphy is transmission of text messages by radio waves, analogous to electrical telegraphy using cables. [1] [2] Before about 1910, the term wireless telegraphy was also used for other experimental technologies for transmitting telegraph signals without wires. [3] [4] In radiotelegraphy, information is transmitted by pulses of radio waves of two different ...

  6. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Noise-cancelling headphones are headphones which suppress unwanted ambient sounds using active noise control. This is distinct from passive headphones which, if they reduce ambient sounds at all, use techniques such as soundproofing .

  7. Wireless power transfer - Wikipedia

    en.wikipedia.org/wiki/Wireless_power_transfer

    Wireless power transfer ( WPT ), wireless power transmission, wireless energy transmission ( WET ), or electromagnetic power transfer is the transmission of electrical energy without wires as a physical link. In a wireless power transmission system, an electrically powered transmitter device generates a time-varying electromagnetic field that ...

  8. List of WLAN channels - Wikipedia

    en.wikipedia.org/wiki/List_of_WLAN_channels

    Wireless LAN (WLAN) channels are frequently accessed using IEEE 802.11 protocols. The 802.11 standard provides several radio frequency bands for use in Wi-Fi communications, each divided into a multitude of channels numbered at 5 MHz spacing (except in the 45/60 GHz band, where they are 0.54/1.08/2.16 GHz apart) between the centre frequency of the channel. The standards allow for channels to ...

  9. Optical wireless communications - Wikipedia

    en.wikipedia.org/wiki/Optical_Wireless...

    Optical wireless communications ( OWC) is a form of optical communication in which unguided visible, infrared (IR), or ultraviolet (UV) light is used to carry a signal. It is generally used in short-range communication.

  10. Wireless keyboard - Wikipedia

    en.wikipedia.org/wiki/Wireless_keyboard

    A wireless keyboard is a computer keyboard that allows the user to communicate with computers, tablets, or laptops with the help of radio frequency (RF), such as WiFi and Bluetooth or with infrared (IR) technology.

  11. Wireless Internet service provider - Wikipedia

    en.wikipedia.org/wiki/Wireless_Internet_service...

    A wireless Internet service provider ( WISP) is an Internet service provider with a network based on wireless networking. Technology may include commonplace Wi-Fi wireless mesh networking, or proprietary equipment designed to operate over open 900 MHz, 2.4 GHz, 4.9, 5, 24, and 60 GHz bands or licensed frequencies in the UHF band (including the ...