The shure srh840a professional headphones provide pro sound for musicians producers audio engineers and producers alike'. '.strtoupper('t')heir 40mm dynamic neodymium drivers deliver a balanced frequency response and reference grade sound quality'. '.strtoupper('w')ith accurate audio across the full frequency range the srh840as capture every subtle detail with maximum precision ideal for mixing monitoring and mastering'. '.strtoupper('w')ith a circumaural design the srh440as minimize background noise while maximizing comfort'. '.strtoupper('p')lus with better isolation and a padded headband and earpads youll be able to focus for longer more productive sessions without listening fatigue'. '.strtoupper('a')nd they look great too with a sleek design made for camera.