很多人听音乐的时候喜欢用耳机,不影响别人,也能全身心地沉浸在美妙的旋律中。市场上的耳机种类繁多,款式时尚,而如何选择耳机却是有所讲究的。如果你用耳机听一场动感十足的摇滚音乐会,时间久了,耳朵就会出现“嗡嗡”声,也就是耳鸣,让人感觉很不舒服。如果长期处于这种噪声中,就会导致听力的永久性损害。耳机的质量好坏对耳朵的影响也是非常大的,质量差的杂音多,也容易损伤耳膜。引起永久性听力损害的有两种噪声,一种是高声的脉冲噪音; Many people like to use headphones when listening to music, does not affect others, but also fully immersed in the wonderful melody. A wide range of headphones on the market, style fashion, but how to choose headphones are some stress. If you listen to a dynamic rock concert with your headphones, your ears will show “buzzing” sound, which is tinnitus, which will make you feel uncomfortable over time. If this noise is long-term, it will lead to permanent hearing damage. The quality of headphones on the impact of the ear is very large, poor quality of the noise, but also easy to damage the eardrum. There are two kinds of noise that cause permanent hearing damage, one is the loud impulsive noise;