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2. I Have Teeny Little Ears and These Earbuds *Actually* Stay Put

   www.aol.com/lifestyle/teeny-little-ears-earbuds...

   THE REVIEW: "This is a top quality ear bud solution in what is already a crowded marketplace. The ear buds sit comfortably in the ears and the sound is crisp with a well defined, but not boomy, bass."

3. Are Noise-Canceling Headphones Harmful to Your Ears? - AOL

   www.aol.com/noise-canceling-headphones-harmful...

   The good news is that noise-canceling headphones can benefit your ears in certain situations. A few of those situations could be blocking out background noise in a busy coffee shop, blaring ...

4. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   Simplified graphical depiction of active noise reduction. To cancel the lower-frequency portions of the noise, noise-cancelling headphones use active noise control or ANC.A microphone captures the targeted ambient sounds, and a small amplifier generates sound waves that are exactly out of phase with the undesired sounds.

5. Head-related transfer function - Wikipedia

   en.wikipedia.org/wiki/Head-related_transfer_function

   HRTF filtering effect. A head-related transfer function (HRTF) is a response that characterizes how an ear receives a sound from a point in space. As sound strikes the listener, the size and shape of the head, ears, ear canal, density of the head, size and shape of nasal and oral cavities, all transform the sound and affect how it is perceived, boosting some frequencies and attenuating others.

6. Safe listening - Wikipedia

   en.wikipedia.org/wiki/Safe_listening

   Make Listening Safe is promoting the development of features in PLS to raise the users' awareness of risky listening practices. In this context, the WHO partnered with the International Telecommunication Union to develop suitable exposure limits for inclusion in the voluntary H.870 safety standards on "Guidelines for safe listening devices/systems."

7. All the best earbuds for every style and situation - AOL

   www.aol.com/news/10-best-earbuds-every-situation...

   Picking up a £10 pair of earbuds in the checkout line is easy enough but you know deep down that you’ll be back there again next month (or even sooner) because they’ve fizzled out already ...