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iws iws is offline
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Default Philips Active Noise Canceling Headphones, SHN2500 OEM - SHN2500-B ???

"mm" wrote in message
...
| Are these actually active noise cancelling, or even noise cancelling
| at all?
|
|
http://www.buy.com/prod/philips-acti...tml?adid=17992
|
| Their list price is only 30 dollars.
|
| I thought to be noise cancelling, there had to be a microphone that
| listened to background noise and a circuit that reversed the noise and
| simultaneously played it through the speakers or earphones.
|
| It's not just on this shlocky website that I see the term used to
| mean, afaict, "fills your ear canal so the noise can't get it". Or do
| they do more than that.
|
| Thanks.
|
Yes, they will have some sort of active noise cancelling circuitry with a
microphone. It's all in the separate module shown next to the ear pieces.
How well it works is another story but the reviews for this model seem
pretty positive.