Construction seems way better than other headphones Ive had in the past at this price, and theyre really light (which is important if you plan on having them on your head for long periods of time). This keyboard is a wonderfully made device. "However, over the past few months, the left mouse button started getting flakey. Best purchase eveeeeer. Dont understand why. They stayed on for the 90 minutes I worked out and did not move at all and I was impressed with the Design. I dont like base when it drowns out every other frequency, and these do NOT do that! Im going to return and maybe get a replacement, or just go for a different brand. Ive looked all over the interwebs for solutions of the non permanemt sort since I rent. Für mich sind die Kopfhörer aufgrund dessen aber unbenutzbar.