In my opinion, these headphones are the best on the market. They are exceptional not only in quality, but in comfort. They are the perfect size and they fit comfortably over your ears. You do not have to fiddle with them trying to get them inside of your ears. They are adjustable to allow just the right amount of room to move around with. Further, they are light weight and easy to use. Sound Quality The sound quality is excellent. I have bought several of these headphones because of the comfort and perfect sound quality. You never have to worry about one side not being audible or uneven in sound. Comfort As stated, these headphones are extremely comfortable and easily fit over your ears. You will never accidentally hit your eardrums with these. The fit perfectly over your ear and you do not have to fiddle with them to force them to fit or make sure the do not fall out, and they don't squish your ears like other headphones. Design It has a sleek and slim design that looks great, and they can be worn discreetly. Also the design is excellent for running or working out because it doesn't tangle or fall out of your ears. Durability They are very durable.