How to choose noise cancelling headphones

How to choose noise cancelling headphones

What is noise cancelling headphones?

General noise canceling headphones are divided into active noise cancellation and passive noise cancellation.

What is the difference between passive and active noise cancellation?

General noise canceling headphones are divided into active noise cancellation and passive noise cancellation.
Active noise canceling headphones work mainly to receiving external sound waves through the microphone built into the headphones, then send the opposite reverse sound wave, thereby canceling the noise, reducing noise.

Another is passive noise canceling earphone. This noise reduction earphone is mainly by surrounded the ear to form a closed space, prevent noise from spreading, just like you use your hands to hold on your ears.

Does active noise cancelling damage hearing?

Long-term exposure to noise can cause hearing damage, some noises are somewhat occult and are often overlooked.

For example, listening to a mobile phone or music in a noisy environment, the normal human ear can withstand a volume below 85 decibels, long-term exposure to more than 85 decibels can cause progressive hearing damage.

For example:
The noise in the subway is exactly 80 decibels. If you want to pick up the phone in the subway, watch the video, listen to music. The volume often exceeds 90 decibels, and at this time your hearing is damaging.

Here to show REALTON active noise cancalling headphones

A12 sport headphone
  • Bluetooth Version 4.2
  • Chipset BES2000+AMS3435 
  • -25dB Active Noise Cancelling
  • Playtime time 4H
T22 noise cancelling headphone
  • Bluetooth Version 5.0
  • Chipset QCC5124 
  • -23dB Active Noise Cancelling
  • Playtime time 6H*5

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