I bought for the Chinese ear monitoring system as a replacement for the stock ones (they are completely non-existent). They muffle well. Inserting both ears and turning on the music of your own handclaps at 10% volume, you do not hear. I often use it with only one ear (for monitoring) - they shout over live drums. Even in one ear, the mix is clear and detailed. When listening to music, the sound is good, but I usually use monitor professional headphones - of course they lose. Overall very satisfied, for my purposes a great story. I tried simpler models from the same series - they work worse.
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