Koss Pro4AAA Titanium Stereophone

Titanium coated mylar diaphragms and computer optimized strontium ferrite magnets for deep clarityDynamic element for extended frequency responseFrequency response: 10Hz-25kHzOxygen-free copper voice coils for signal clarityClosed vinyl Pneumalite ear cushions for improved isolation and deep bassAdjustable vinyl leatherette headband with padded sling for maximum comfortPivoting ear cups for single-sided listening and flat storageCoiled single entry 8' cordIncludes carrying case 3.5mm plug and 6.3mm adapter