Milian Acoustics SVT Studio Reference Isolation Headphones -- 1/4" Stereo TRS Plug 30 decibels of Circumaural Noise Reduction 40 mm Titanium Neodymium Drivers Frequency Response: 15-25000 Hz - Sensitivity: 102 db SPL @ 1 kHz Impedance: 60 Ohms - THD: &lt; 0.2% 6 Ft. Milian Acoustics OFC Sleeved Headphone Cable