These inexpensive headphones have a descent sound quality, good enough for recording or mixing. They are closed back but not completely isolating (as e.g. the HD 990D are). They are light and comfortable to wear for extended periods. However, the build quality seems to be poor, the materials are not strong. After using for about a year, one channel started to fall out intermittently with occasional crackling noises whenever the cable was touched or moved. Some time later that channel fell completely silent, so I am assuming the cable was faulty or simply poor quality. Too short short a lifespan for this product, in my opinion.