Closed headphones

 

— closed models have a very good degree of sound insulation, they effectively protect both the user from outside noise and those around them from the sound from the headphones. From the point of view of acoustics, the closed design is notable for its powerful bass and good sound saturation, however, the sound is more prone to distortion than in open headphones. On the practical side, closed models allow you to enjoy sound even in noisy environments, but do not allow you to hear ambient sounds, which in some situations can be a serious disadvantage (for example, when cycling or being on a busy city street).