The difference between ordinary earphones and noise-canceling earphones is quite big. It can be seen from the following points:
(1) In terms of demand: ordinary headphones are more to meet people’s needs for listening and reading, while noise-reducing headphones are more to help people stay away from the noise.
(2) In principle: Noise-canceling headphones do not need to use extra volume to offset the noise of the environment.
(3) From the perspective of safety: Noise-canceling headphones avoid the impact damage to the eardrums at a high volume for a long time, thereby effectively protecting hearing.