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  2. Take 20% Off Raycon Earbuds, Headphones and Speakers Right ...

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

    These Basic Earbuds. The Work Earbuds Classic. Raycon. For everyday wear that’s easy to take in and out, these buds are the perfect pick! See it! Get The Work Earbuds Classic (originally $120 ...

  3. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    Noise control is an active or passive means of reducing sound emissions, often for personal comfort, environmental considerations, or legal compliance. Active noise control is sound reduction using a power source. Passive noise control is sound reduction by noise-isolating materials such as insulation, sound-absorbing tiles, or a muffler rather ...

  4. Noise-cancelling headphones - Wikipedia

    en.wikipedia.org/wiki/Noise-cancelling_headphones

    Noise -cancelling headphones alongside a carry case. 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 . Noise cancellation makes it possible to listen to audio ...

  5. Ray J - Wikipedia

    en.wikipedia.org/wiki/Ray_J

    The show premiered on February 2, 2009. For his show on March 24, 2009, he released the soundtrack/studio album called For the Love of Ray J. On November 2, 2009, the show's second season premiered. In 2010, Norwood and his sister Brandy Norwood premiered the VH1 reality series Brandy & Ray J: A Family Business along with their parents. The ...

  6. Equal-loudness contour - Wikipedia

    en.wikipedia.org/wiki/Equal-loudness_contour

    An equal-loudness contour is a measure of sound pressure level, over the frequency spectrum, for which a listener perceives a constant loudness when presented with pure steady tones. [1] The unit of measurement for loudness levels is the phon and is arrived at by reference to equal-loudness contours. By definition, two sine waves of differing ...

  7. No swabs: This is the safe way to clean your ears - AOL

    www.aol.com/news/safely-clean-ears-according...

    Use a damp cloth: “This is the safest method for most people,” says Dr. Soma Mandal, a board-certified internist at Summit Health in New Providence, New Jersey. Simply dampen a washcloth with ...

  8. Common-mode rejection ratio - Wikipedia

    en.wikipedia.org/wiki/Common-mode_rejection_ratio

    Common-mode rejection ratio. In electronics, the common mode rejection ratio ( CMRR) of a differential amplifier (or other device) is a metric used to quantify the ability of the device to reject common-mode signals, i.e. those that appear simultaneously and in-phase on both inputs. An ideal differential amplifier would have infinite CMRR ...

  9. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1] – defined as "A transmitter-receiver associated with a fixed navigational mark which, when triggered by a radar, automatically returns a distinctive signal which can appear on the display of the ...