Don't get me wrong, these are fantastic sounding headphones, but the quality could have been better built. I've had these for three months and they already started cracking and yes, I've used a hard headphone case so protect them, but where the seams are on the headphones is directly where the cracks started to happen.
WHO WE ARE. Shanghai GBMachine Mining and Construction Machinery Co., Ltd. is a hi-tech, engineering group. We are specialized in the research, development, and production of industrial crushing, powder grinding, mineral processing equipments and other related devices.