When traveling on business, you need a pair of acoustic noise cancellation headphones, so you can quietly enjoy the music, doing their own thing. To achieve this kind of effect is the best noise-canceling headphones. Noise-canceling headphones can be divided into active and passive noise cancelling headphones noise cancelling headphones.
Passive noise-reducing headphones by physical means, by way of reduction, block noise entering the ear canal, so as to achieve the purpose of noise reduction. In-ear headphones and headband headset headset can have noise reduction effect. By silica gel, memory foam or combination of means, are generally achieved by the noise reduction effect, more than 10 to dozens of dB. If custom headphones, because more suitable, more fitting to achieve higher levels of noise reduction effect.
So the headphones can be called noise-reducing headphones, just the strength of noise reduction effect. So when consumers buy headphones, make sure you buy the headset is active or passive noise reduction headphones noise cancelling headphones, do not be fooled by bad business.
Active noise cancelling headphones named siyi, as opposed to passive, it will take the initiative. Active noise cancelling headphones through a collection of ambient noise, noise-canceling headphones built in chip processing, issuing noise instead of sound waves. Both weakened, offsetting each other, so as to achieve the purpose of noise reduction. Compared to passive noise reduction and much more active noise reduction technology, the price is expensive. Recommendation: consumers mainly according to their need to buy your own headset, suit your are the best
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