* I don't like to use true wireless headphones for fear of losing one of the headphones and discomfort, so I wanted to find "classic" headphones with good noise reduction for myself. They didn’t let us down - they sit comfortably due to the tight-fitting design, they perfectly filter office noise even if there is no music playing. With music or other audio, the surrounding world disappears completely. A similar situation in the aircraft, although some noise will be heard. * Keep in mind that predominantly high frequency sounds will be heard better through noise reduction than low frequency sounds. The "ringing" human voice coming out of low-quality speakers, like in a tin can, is heard much more than natural. A variety of squeaks are also relatively well audible. * It is very scary to go outside with them around your neck if there is a chance of rain - the headphones are not waterproof, so for such money I keep them exclusively dry and I advise you.