At first, these headphones are fantastic - comfortable, great sound quality, and great noise cancellation. I often fly in turboprops which are very noisy airplanes, and I can hear my music in full fidelity. I also like the nice case with all the extra adapters. But as others say, the headphones literally start crumbling apart after a while. My headphones still work, but are taped together with electrical tape. It won't be long before I have to replace them and it definitely won't be another Jabra.