Sometimes they are not detected automatically on a computer or smartphone (you have to enable forced connection), but it seems to me that this is a software problem of a computer or smartphone. Got pros: Great sound: clear and pleasant. Noise cancellation works - it's no longer customary to ride the subway without headphones. Pleasant to the touch and color. Some cons: Have not found. Unless autonomy, but this is in comparison with the new generation of headphones that hold 2 times longer.
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