I admit that this cover is very helpful. I use it in key door (very handy when you want to save the inevitable bag dump outside her door. This "function" gives the advantage of always having them handy headphones They are it safe and not likely to be shredded by the mass of bulky items that walks in my bag. I've had only three months, but I think this cover will dramatically extend the life of my headphones! I am very happy! And I recommend!