They do a better job of stopping outside noise, so you can listen at a lower volume.

它们能更好地阻止外界的噪音，所以你可以调低音量听音乐。

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Thanks to the closed-back design, isolation from outside noise was very good even on the subway.

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Indeed, even the foam tips here didn't perfectly seal around this editor's ears, letting more outside noise seep in compared to Klipsch's far cheaper Image S4i.

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V-MODA's analog noise isolation naturally blocks out the distractions of jet engines, outside noise and booth monitors minus the extra digital-to-analog conversions of battery powered headphones that pollute the purity of your music.

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