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  2. Microphone blocker - Wikipedia

    en.wikipedia.org/wiki/Microphone_blocker

    Safety test. Hardware devices should always be tested if it is controlled by software which renders a microphone blocker useless. This can simply be done by plugging a headset or a microphone to the jack try to activate the internal microphone (eg with speaker mode on smartphones or feature phones and speak near the phone while keeping the microphone at distance or plugged), or any program ...

  3. List of Bluetooth profiles - Wikipedia

    en.wikipedia.org/wiki/List_of_Bluetooth_profiles

    Human Interface Device Profile (HID) [ edit] Provides support for HID devices such as mice, joysticks, keyboards, and simple buttons and indicators on other types of devices. It is designed to provide a low latency link, with low power requirements. PlayStation 3 controllers and Wii remotes also use Bluetooth HID.

  4. Audio headset - Wikipedia

    en.wikipedia.org/wiki/Audio_headset

    Audio headset. A typical call center/office headset. A headset is a combination of headphone and microphone. Headsets connect over a telephone or to a computer, allowing the user to speak and listen while keeping both hands free.

  5. Headphones - Wikipedia

    en.wikipedia.org/wiki/Headphones

    Headphones are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby ...

  6. Blumlein pair - Wikipedia

    en.wikipedia.org/wiki/Blumlein_pair

    Blumlein pair. Blumlein pair is a stereo recording technique invented by Alan Blumlein for the creation of recordings that, upon replaying through headphones or loudspeakers, recreate the spatial characteristics of the recorded signal. The pair consists of an array of two matched microphones that have a bi-directional ("figure-eight") polar ...

  7. The best wireless headphones for seniors - AOL

    www.aol.com/lifestyle/best-wireless-headphones...

    Sony WH-CH720N Noise-Cancelling Wireless Headphones. Best Sony XM5 headphones alternative. $109 at Walmart. Earbuds are easily lost, too, but just try misplacing a full-size headphone. Below I've ...

  8. Bluetooth - Wikipedia

    en.wikipedia.org/wiki/Bluetooth

    Website. www .bluetooth .com. A Bluetooth earbud, an earphone and microphone that communicates with a cellphone using the Bluetooth protocol. Bluetooth is a short-range wireless technology standard that is used for exchanging data between fixed and mobile devices over short distances and building personal area networks (PANs).

  9. Nvidia’s surge reveals a pitfall of passive investing ... - AOL

    www.aol.com/finance/nvidia-surge-reveals-pitfall...

    Fortunately for investors, these are highly liquid stocks, and the investment community will have had a full week to digest the scenario by the time the rebalancing goes into effect Friday.