PRODUCT DESCRIPTION
Frequency response: 20Hz-20kHzDynamic element for premium sound at all volume levels Full-range of sound excellent for gaming Soft large leatherette closed ear cups surround the ear for maximum isolation Microphone eliminates excessive background noise for a greater ease of use with PC voice applications Adjustable headband to fit most head sizes Built of durable plastic to stand up to the rigors of daily wear and tear Straight dual entry cord

AMAZON.COM
Enjoy quality sound and hands-free talking at your computer with the SB40 computer headset from Koss. The closed-ear headphone, or stereophone, as Koss calls it, blocks sounds from within the earcups and without, maximizing privacy and intelligibility. The boom microphone offers a pickup pattern that rejects off-axis sound, so the parties on the receiving end of your calls will hear your voice and little else from your mic. Smooth leatherette cushions and the headband's adjustable, cloth sling and provide comfort during extended use, while the headset's straight, 9-foot cord grants ease of movement at a good-sized radius from your work station.

What's in the Box
Headphones, data sheet.