A couple of weeks into using them, I noticed that my left earpiece started making a noise whenever I activated noise reduction or transparency mode. Yes, and in theory, I'm not too fond of the noise reduction, what with it being possible to hear the same amount of noise without it. One of the contacts on the left earbud has either rusted or become black; a small black one and a red item have formed on the mesh. To sum up, I'm quite disappointed, and it's not a tiny sum of money. Maybe it's supposed to be this way, or maybe I just got a defective model. I believe it is now time to try a guaranteed handover.
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