I'll take it under warranty and see what they say. As for convenience, they didn't suit me personally. I've tried all 3 sizes of eartips, but I couldn't get them to fit snugly in my ear. It’s good that they didn’t fly off at once - you have time to feel it and intercept Got pros: - Honestly kept their 4 hours from a full charge (worked with breaks for about 6) - Firm sound. Pretty good for these kids. Some cons: These headphones have the main one on the right. Moreover, the left can only work in tandem with the right. As a result, the right one was taken out of the case more often, subsequently it began to charge every other time. You have to move in the case and hope for the magic of his flimsy contacts. It also happened that you put it in a case, and then it moves inside and stops charging. At the same time, he himself connects to the phone and intercepts the sound when you do not expect it.
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