Add some color to your music

Koss has long been known for making great-sounding portable headphones that won't break the bank. Their RUK50 headphones deliver engaging sound with deep, powerful bass in a unique around-the-ear headphone. The RUK50 features a closed-back design, minimizing external noise and keeping sound from leaking out and disturbing others, so you can listen anywhere. The padded earcups and headband provide plenty of cushioning for long-lasting comfort. And the lightweight design makes the RUK50 perfect for on-the-go listening with a mobile phone or music player. Available in four bold designs, these fun headphones will keep your head bobbing as their bright colors turn heads.

Product Highlights:

  • closed-back design keeps out external noise for listening in any environment
  • earcups fold flat for easy storage
  • 4-foot miniplug cable
  • frequency response: 20-20,000 Hz
  • sensitivity: 99 dB
  • impedance: 32 ohms
  • warranty: lifetime
  • Our 60-day money-back guarantee
Be the first to review this product
Great Gear Giveaway

Submit a review and then enter to win a $350 rewards card

Review this product:

Thanks for taking the time to share your experiences about this product. Please be sure to focus your comments on the product itself. Read our Review Guidelines for more information.

Your email won't be visible. Please use the email address that is associated with your order.
(e.g., JohnD) Your review will be signed using the display name and location
(e.g., Charlottesville, VA)

Click on a star to rate the overall product on a scale of 1-5
Rate the following specific attributes
  Sound Quality
 "Coolness Factor"
 Build Quality
 Noise Reduction
1500 characters left
  Attach a YouTube Review
Crutchfield Video Review Guidelines
  • Only submit videos that you made or are authorized to use.
  • Do not submit videos that contain music, video or visuals that are copyrighted and belong to someone else.
  • Please see our Review Guidelines for more information.
500 characters left
500 characters left

Hands-on research

What's in the box?

Download owner's manual

  • Purple over-ear headphones with attached 4' straight cord (3.5mm plug)
  • Limited Lifetime warranty sheet

Features and Specs

Fit Style Over-the-ear
Earcup Type Closed
Noise-canceling No
Bluetooth No
Frequency Response 20-20k Hz
Sensitivity 99 dB
Impedance 32 Ohms
Weight 6.9 ounces
Cord Length 48"
Airline Adapter Included No
iPod Control No
Volume Control No
Built-in Microphone No
Parts Warranty Lifetime
Labor Warranty Lifetime

Product Research


Overview: The Koss Rukus-series RUK50 full-size headphones are designed for maximum comfort. They feature soft isolating ear cushions and a padded headband that allow you to listen for hours. The noise-isolating fit blocks external noise, so all you hear is the music. The earcups pivot so you can lay them flat for storage or packing in a suitcase.

Cord: The headphones have a 4' heavy-duty cable that exits the left earcup and terminates with a straight 3.5mm plug.

Warranty: The RUK50s are covered by the Koss Stereophones Limited Lifetime Warranty.


  • Frequency Response: 20Hz-20kHz
  • Sensitivity (dB/1mW): 99dB
  • Nominal Impedance: 32 ohms

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.