Overview: The Koss Rukus-series RUK40s are lightweight
on-ear headphones. The uniquely designed ear cushions help eliminate ear
fatigue, so you can listen comfortably for hours. The RUK40s use dynamic
elements for smooth bass and a wide frequency response. The earcups pivot so you
can lay them flat for storage or packing in a suitcase.
Cord: The headphones have a 4' tangle-resistant flat cord terminates with a
3.5mm plug. The narrow collar on the plug allows you to connect to recessed
headphone jacks or portable digital music devices with hard cases.
Warranty: The RUK40s are covered by the Koss Stereophones
Limited Lifetime Warranty.
- Frequency Response: 20Hz-20kHz
- Sensitivity (dB/1mW): 98dB
- Nominal Impedance: 36 ohms
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