From the comments I suspected that the product quality was desired, especially its life! Fortunately it is guaranteed for 2 years because after two months of use, it did not work with one ear. The second "-" was also the length of the wire! There is even nothing to connect the headphones to the central computer a fixed !!! Apart from these large defects it gives a good sound, it is light and rather design, the box is well thought out and sophisticated, but there is nothing to offset my disappointment!
