Im sad because the headphones initially worked well, but developed an increasing sort of hum of static that quickly rendered the headphones unusable. These are better than expected. But other than that, a positive experience. I guess this is how they get the major sound cancellation but it needs to be a soft material that can form to your ear. Super cute case, however it seemed loose, the top piece keeps slipping off case. ive been so impressed for the price. I travel. Falls off easily. I took about ten minutes to complete this and I have small fingers, any person with large/fat fingers would find it extremely difficult. I have tried several Puma slides, and they all run small.