content: I got these to replace my yellow Sony sports headphones. The yellow ones were kind of "rubbery" and I've had them for years. These broke within 3 weeks. And not under great stress or high use, either. Just simply taking them off of my head by pulling them apart to get them out of my ear and they broke where the length of the left ear adjusts.Very poor design and cheap plastic. I'll buy other Sony headphones, especially if I can find ones made similar to my older yellow ones. But I will never buy another set of these.Plus: They sound greatCon: They are such poor design that they broke at a really thin place of construction that would get a LOT of pressure from anyone when putting them on or taking them off their head.