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www.ask.com/technology/active-noise-cancelling-headphones-6676f07d49d85b4f

Active noise-canceling headphones both play sound and block ambient noise. The headphones combine a noise-blocking structure with a system that erases lower-frequency sound waves b...

Noise-cancelling headphones

en.wikipedia.org/wiki/Noise-cancelling_headphones

Noise-cancelling headphones are headphones that reduce unwanted ambient sounds using active noise control. This is distinct from passive headphones ...

voip.about.com/od/Headsets/a/Noise-Cancelling.htm
They are not as smooth as the sine waves you are picturing in your mind, but these are good examples to understand the concept. Noise cancelling is implemented in modern headphones, and is one of the most demanded features. Transmitters fitted within the same mechanis... More »
By Nadeem Unuth, About.com Guide

Best noise-canceling headphones of 2016 - CNET - CNET.com

www.cnet.com/topics/headphones/best-headphones/noise-canceling/

Jan 27, 2016 ... Looking for the best noise-canceling headphones? CNET editors' review of the best noise-canceling headphones includes product photos, ...

Amazon.com: Noise-Canceling Headphones

www.amazon.com/Noise-Cancelling-Headphones-Accessories-Supplies/b?ie=UTF8&node=509318

Results 1 - 24 of 1244 ... Find the best noise-canceling headphones at Amazon.com.

The Best Noise-Canceling Headphones of 2016 | PCMag.com

www.pcmag.com/article2/0,2817,2115378,00.asp

These top-rated noise-canceling headphones let you block out the world around you and enjoy your music...or the sweet sound of silence.

QuietComfort® 20 Acoustic Noise Cancelling® headphones - Bose

www.bose.com/products/headphones/earphones/quietcomfort-20i-acoustic-noise-cancelling-headphones.html

Shut out the world and lose yourself in your music—or let the world in. It's your choice with the first in-ear noise cancelling headphones from Bose.

Over-ear headphones - Bose

www.bose.com/products/headphones/over_ear_headphones.html

NFL Edition – Custom QC25 noise cancelling headphones – Apple devices. Baltimore Ravens, Tampa Bay Buccaneers, Carolina Panthers, Tennessee Titans ...

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Popular Q&A
Q: What are noise cancelling headphones?
A: Noise cancellation works by sampling the outside noise, inverting the signal, and mixing it in with your music. This needs power, so noise canceling headphones ... Read More »
Source: answers.yahoo.com
Q: What are Noise Canceling Headphones?
A: Noise canceling headphones reduce. ambient noise. so the wearer can either enjoy a greater degree of quiet for relaxation, or listen to music at lower volumes t... Read More »
Source: www.wisegeek.com
Q: Are noise cancelling headphones unhealthy?
A: Noise Canceling Headphones are healthy for you. They can block out annoying noises that will give you a headache. ! Read More »
Source: www.chacha.com
Q: Noise Cancelling Headphones for Children.
A: Although noise cancelling headphones are a more expensive accessory, there are several similar models that use noise-reducing technology for children. Using the... Read More »
Source: www.ehow.com
Q: Are Noise Cancelling Headphones Dangerous?
A: No, they are not dangerous. They produce sounds that counter the sounds coming in from the outside world so that you don't hear them. Read More »
Source: answers.yahoo.com