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  2. 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.

  3. Matched pair testing - Wikipedia

    en.wikipedia.org/wiki/Matched_pair_testing

    Matched pair testing is used to detect discrimination. The focus is to determine the presence of disparate treatment in the offering of goods and services during the sales process. Traditionally used to determine discrimination in housing and mortgage lending, the research methodology involves the use of pairs of testers or mystery shoppers ...

  4. Optical wireless communications - Wikipedia

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

    Optical wireless communication (OWC) refers to transmission in unguided propagation media through the use of optical carriers: visible, infrared (IR), and ultraviolet (UV) radiation. Signalling through beacon fires, smoke, ship flags and semaphore telegraph can be considered the historical forms of OWC. [3]

  5. Wireless sensor network - Wikipedia

    en.wikipedia.org/wiki/Wireless_sensor_network

    Wireless sensor network. Wireless sensor networks ( WSNs) refer to networks of spatially dispersed and dedicated sensors that monitor and record the physical conditions of the environment and forward the collected data to a central location. WSNs can measure environmental conditions such as temperature, sound, pollution levels, humidity and wind.

  6. Pixel Buds - Wikipedia

    en.wikipedia.org/wiki/Pixel_Buds

    The Pixel Buds is a line of wireless earbuds developed and marketed by Google. The first-generation Pixel Buds were launched on October 4, 2017, at the Made by Google launch event, and became available for preorder on the Google Store the same day. [1] [2] They have the Google Assistant built-in and support Google Translate .

  7. Huawei FreeBuds - Wikipedia

    en.wikipedia.org/wiki/Huawei_FreeBuds

    Huawei FreeBuds are wireless Bluetooth and NearLink earbuds. They were first announced and released on March 27, 2018, alongside the Huawei P20 series.In addition to playing audio, the Huawei FreeBuds contain built-in microphones for noise cancellation, accelerometers, and optical sensors to detect wear status and gestures (e.g., double-tap to pause audio).

  8. Samsung Galaxy Buds series - Wikipedia

    en.wikipedia.org/wiki/Samsung_Galaxy_Buds_series

    The Buds 2 Pro include active noise cancellation, 24-bit Hi-Fi audio support (only for Samsung device with One UI 4.0 or above) and enhanced 360-degree audio. They were released on August 26, 2022, with a launch price of $229.99, a $30 price increase compared to the original Galaxy Buds Pro.

  9. Apple headphones - Wikipedia

    en.wikipedia.org/wiki/Apple_headphones

    Apple headphones. Apple Inc. has produced and sold headphones since 2001, available for standalone purchase and bundled with iPhone (until 2020) and iPod (until 2022) products. Apple's current product line consists of EarPods (wired earbuds available with a 3.5mm headphone or Lightning connector or USB-C ), AirPods and AirPods Pro (wireless ...