In what is probably less than 2 full months, the headphones I bought, AKG K99 are now for a replacement. The mechanism for having no pressure on the top of the head and always fit on the head without the need to pre set them, has broken. I can barely use them since they can't stay on the head. I never once hit them, drop them or otherwise treated them badly. I am careful with my headphones. I managed to temporarily fix them, but no idea for how long. I wish this was the only issue I had with them. For every day I use them they are/were the most uncomfortable paid of headphones I ever owned. Constant high pressure on the ears to the point of having to remove them every 20 min or so to release the pressure. I was hoping they would get better after a month but nothing changed. The now broken mechanism worked fine from releasing the pressure from the top of the head, but it put most of that pressure on the ears. The minor amount of "foam" (or whatever it is) for the pads doesn't help. Another issue, relatively minor compared to the previous two, the materials used for the pair. If you touch them at any point, they make a very loud noise (non electrical) which amplifies to the ears to the point you can't hear anything playing through them. It's like if you pressure your ear on a piece of wood and start hitting on the wood from the other side. Sound quality, they are/were great for their price. But that was hardly a surprise since I like how AKG headphones sound. Build/design quality, awful. I will have to continue to use them even like this, somehow, since I can't afford now to buy another pair, but let this post be a warning to people considering this specific model.