KOSS UR21C Full Size Headphones

• Improved signal transmission and conduction for cleaner, clearer sound
• Closed, leatherette ear cushions enhance bass performance, block outside noise, and minimize sound leakage
• In-line volume control allows convenient adjustment of sound levels
• Adjustable headband
• Includes single-entry 4 foot cord with 3.5 mm (1/8-inch) plug
• Contemporary styling and simple design
• Covered under the Koss Stereophones Limited Lifetime Warranty

Specification:

• Frequency Response : 20-18,000 Hz
• Impedance                : 32 ohms
• Sensitivity                  : 90 dB SPL/1mW
• Cord                         : Straight, Dual Entry, 4ft