Sony MDR7506 Professional Large Diaphragm Headphone

Neodymium magnets and 40mm drivers for powerful, detailed sound
Closed-ear design provides comfort and outstanding reduction of external noises
9.8-foot cord ends in gold-plated plug and it is not deatachable; 1/4-inch adapter included
Folds up for storage or travel in provided soft case
Frequency Response: 10Hz – 20 kHz
These large diaphragm, foldable headphones feature a rugged construction, a secure, highly effective closed-ear design

Sony MDR7506 Professional Large Diaphragm Headphone

This extremely high quality, unobtrusive, lightweight reference headphone has been engineered to be comfortable to wear for extended periods, making it ideal for use in broadcast and studio environments. A 40mm PET diaphragm and neodymium magnet provide performance exceeding the requirements of digital audio sources.