I've had a pair of these for over a year now, and they still have not broken. That's a first for me! Most headphones I've used have broken one way or another within 2 months. Sound Quality These headphones have a great sound quality for everything I've used them for. Even for phone calls, it's easier to hear with these headphones in than with a normal iPod or iPhone built-in speaker. Comfort The earbuds have never caused pain or irritation like some brands can tend to do. I've even been able to fall asleep with these headphones in! Design The volume adjuster and speaker built into the headphones are extremely helpful. Also, the earbuds themselves are not bulky in design. Durability I'm really amazed at how long these headphones have lasted for me. I have a habit of blowing the speakers or breaking the wires in my headphones, yet these have lasted for over a year for me. They've lasted longer than any other brand of headphones I've ever used.