A detachable premium cable results in greater mobility. Aircraft grade aluminum cable grommets provide superior stability and super-quiet operation. An 8’ cable extension with 3.5 mm stereo plug and 6.3 mm screw-on type adapter expands the boundaries of connectivity. New High Precision Audio (HPA) drivers lead to improved fidelity and audio quality. Features: Type: Dynamic closed type headphones with closed back speakers Passive Attenuation: 36.7 Db Frequency Response: 20-20,000 Hz Fidelity Response: High Precision Audio (HPA) Drivers: 40 mm, closed back Impedance: 32 ohm Sensitivity: 114 dB at 1 KHz 1 mW Cord: Premium detachable Rated Input Power: 1000 mW Weight: 11.5 oz