Specifications:

Sony UniMatch plug systemwith fixed stereo miniplug for use with portable equipment; detachable phone plug for use with studio and home audio equipment         

• Type Closed supra-aural, Dynamic         
• Drive Unit 50 mm         
• Diaphragm PET             
• Magnet Neodymium         
• Impedance24 ohms         
• Sensitivity107 dB/mW         
• Power Handling Capacity 3000 mW          
• Frequency Response 5 -- 30,000 Hz        
• Headband wide, adjustable single headband with folding earcups          
• Earcups swivel and reversible for single-sided monitoring; auto-return mechanism           
• Cord Oxygen-free copper; Single-sided, 10 feet (3 m)          
• Plug Straight, Gold-plated, stereo UniMatch plug with fixed miniplug and detachable phone plug