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  2. These Wireless Earbuds Stay Charged for a Whopping 54 Hours - AOL

    www.aol.com/entertainment/wireless-earbuds-stay...

    Fact: Wireless earbuds have made our lives far easier, especially when it comes to commuting or working out. That said, there are still things about old-school wired headphones we do miss sometimes.

  3. 'You'd be crazy not to buy these' popular earbuds - AOL

    www.aol.com/lifestyle/crazy-not-buy-score...

    These earbuds fit comfortably and feel stable," said one five-star reviewer. "The sound is clear and can go pretty loud. "The sound is clear and can go pretty loud. The sensors aren’t ...

  4. Wireless device radiation and health - Wikipedia

    en.wikipedia.org/wiki/Wireless_device_radiation...

    Since at least the 1990s, scientists have researched whether the now-ubiquitous radiation associated with mobile phone antennas or cell phone towers is affecting human health. [1] Mobile phone networks use various bands of RF radiation, some of which overlap with the microwave range. Other digital wireless systems, such as data communication ...

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

    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 ...

  6. Active noise control - Wikipedia

    en.wikipedia.org/wiki/Active_noise_control

    Active noise control ( ANC ), also known as noise cancellation ( NC ), or active noise reduction ( ANR ), is a method for reducing unwanted sound by the addition of a second sound specifically designed to cancel the first. The concept was first developed in the late 1930s; later developmental work that began in the 1950s eventually resulted in ...

  7. 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 ...

  8. Maxing Out Your 401(k) May Sound Appealing, but Here's the ...

    www.aol.com/maxing-401-k-may-sound-121500485.html

    However, I've learned that although the thought of maxing out a 401 (k) sounds appealing, the unfortunate truth is that it's a bit of an overrated goal for people who don't have the means to max ...

  9. Signal-to-noise ratio - Wikipedia

    en.wikipedia.org/wiki/Signal-to-noise_ratio

    The plots at the bottom show the signal intensity in the indicated row of the image (red: original signal, blue: with noise). Signal-to-noise ratio ( SNR or S/N) is a measure used in science and engineering that compares the level of a desired signal to the level of background noise. SNR is defined as the ratio of signal power to noise power ...