These over-the-ear headphones deliver a wide-range, extended frequency response through soft, foam ear cushions that guarantee an open, hear-through sound. When you choose the KSC21, you’re rewarded with the comfort of pivoting ear plates, and the great, crisp and clean Sound of Koss.

• 50-18,000 Hz
• 36 ohms
• Straight, Dual Entry, 4ft standard 3.5mm

• Limited Lifetime Warranty