I was upgrading to CX 3 when the cable on my last pair of Sennheisers twitched on the bus. The model I had (and really liked) was no longer made, but the next quality up was the CX 3. The sound itself is excellent, but there is "cable noise". an issue during my bus ride to work which is what i mainly use them for 4 ear adapter options offer a comfortable fit but i don't even bother with the square carry case.
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