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2. Noise-cancelling headphones - Wikipedia

   en.wikipedia.org/wiki/Noise-cancelling_headphones

   [11] [12] Noise-cancelling headphones add extra risk. Several countries and states have made it illegal to wear headphones while driving or cycling. [13] It is not uncommon to get a pressure-like feeling when using noise-cancelling headphones initially.

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. How noise cancelling headphones work - AOL

   www.aol.com/noise-cancelling-headphones...

   Shut out the world with the best noise cancelling headphones out there from Apple, Sony and Bose.

5. Safe listening - Wikipedia

   en.wikipedia.org/wiki/Safe_listening

   Noise-cancelling headphones and sound-isolating earphones can help one avoid turning the volume up to overcome loud background noise. Sound measurement apps can help one find out how loud sounds are. If not measuring the sound levels, a good rule of thumb is that sounds are potentially hazardous if it is necessary to speak in a raised voice to ...

6. The 10 carry-on essentials that make for a first-class ... - AOL

   www.aol.com/lifestyle/the-10-carry-on-essentials...

   Earbuds are more portable than headphones, and able to fit in a comfort kit of any size. These wireless noise-canceling buds from Beats are one of the most popular options on the market, with more ...

7. Active noise control - Wikipedia

   en.wikipedia.org/wiki/Active_noise_control

   The wavelength in air of sinusoidal noise at approximately 800 Hz is double the distance of the average person's left ear to the right ear; [1] such a noise coming directly from the front will be easily reduced by an active system but coming from the side will tend to cancel at one ear while being reinforced at the other, making the noise ...

8. Best noise-canceling headphones, according to Consumer ... - AOL

   www.aol.com/news/best-noise-canceling-headphones...

   Of course, the best noise-canceling headphones are more than souped-up electronic earplugs. ... may feel this model doesn’t fit securely. Sony WF-1000XM4. Sony WF-1000XM4 $278.00 at Walmart.

9. Headphones - Wikipedia

   en.wikipedia.org/wiki/Headphones

   Active noise-cancelling headphones use a microphone, amplifier, and speaker to pick up, amplify, and play ambient noise in phase-reversed form; this to some extent cancels out unwanted noise from the environment without affecting the desired sound source, which is not picked up and reversed by the microphone. They require a power source ...