As for sound insulation - it is not, but it is not declared by the manufacturer. In the subway or on the street, of course, extraneous noises slip through, but you can live. In general, the price is too high. It is clear that this is a brand, but it is also headphones, all the same. And the headphones should sound, and this model has huge problems with this. If you have never used anything other than AirPods, for example, or similar plugs, you may not notice this, but if you understand what sound can be like, and what can be called good sound, I do not advise you to take this model. Even the old Beats EPs were more upbeat, I think. I do not advise you three times if you listen to music in which medium and high frequencies predominate. As a result - perfectly emphasizing your image, but very mediocre-sounding headphones.
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