Ibeya from Australia sold me a used one from the end of 2022, and it functions flawlessly. The sound is most important. Although the wire between the ears is nothing, it clings slightly when it is inserted under the jacket. There is a lot of outside noise in the metro, but it's quite good on the street. The earcup design doesn't hang in my ears, and the isolation is average. Bose remains Bose:
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