We must say good product, a regret, size: a spark of the left ear was a fickle and its more acute when pressing a button ... I tried it for 1 hour whether to take the same and I will try it as it is impressive and stable footing for the same very fast! second comment coming later
second comment after second sale headphones OK, nominal performance. Now another problem: I sent the first with the new cable arrived without a USB cable = repackaged product in a hurry! In short, two purchases, two problems, ie. Good product but poor service, annoying.