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Koss RUK30 In-ear headphones (Silver)

Item # 245RUK30S

Item # 245RUK30S

Shop all Koss Headphones

About the Koss RUK30

David Brown

Better sound is within your budget

Koss has long been known for making great-sounding portable headphones that won't break the bank. Their RUK30 in-ear headphones are a terrific way to upgrade those stock earbuds without spending a fortune. These sleek, comfortable headphones are a great option if you want to enjoy music on your mobile device with no hassles. The flat, tangle-resistant cord will help eliminate annoying knots, so you can keep these earbuds in your pocket or bag for on-the-go listening. Koss includes three pairs of ear tips to help you find the right fit for proper noise isolation as well as comfort.

Product highlights:

  • includes three pairs of silicon ear tips for optimum comfort and noise isolation
  • flat, tangle-resistant 4-foot miniplug cable
  • frequency response: 15-20,000 Hz
  • sensitivity: 110 dB
  • impedance: 16 ohms
  • warranty: lifetime
  • MFR # RUK30S

What's in the box:

  • Silver earbud headphones with an attached 4' flat cord (3.5mm miniplug)
  • 2 Medium silicone tips (installed)
  • 2 Large silicone tips
  • 2 Small silicone tips
  • Limited Lifetime warranty sheet
  • Note on environmental protection

Customer reviews for Koss RUK30

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More details on the Koss RUK30

Mark G.

Features & specs

General
Fit Style In-ear/Earbud
Earcup Type Closed
Earcup Width x Height 0.55" x 0.55"
Noise-canceling No
Bluetooth No
Bluetooth Version ---
Single-earbud Operation ---
Mic For Taking Calls No
Voice Assistant Access
Amazon Alexa No
Google Assistant No
Siri No
Connectors
3.5mm No
1/4" No
Lightning No
4.4mm balanced No
XLR4 balanced No
2.5mm No
Other None
Specs
Frequency Response 15-20k Hz
Sensitivity 110 dB
Impedance 16 Ohms
Weight Not Given
Cord Length 48"
Parts Warranty Lifetime
Labor Warranty Lifetime

Product Research

Features

Overview: The Koss Rukus-series RUK30 features deep bold colors with a design that resembles a hex-head bolt. These noise-isolating in-ear headphones block exterior noise so you can hear your music clearly, without outside interruption.

Silicone Tips: The RUK30s come with three sizes of silicone ear tips (small, medium, and large) for a comfortable fit.

Cord: The headphones have a 4' straight, tangle-resistant flat cord with a slender 3.5mm straight plug. The small diameter plug design can be easily plugged into recessed headphone jacks or when the smartphone or digital music player is contained in a hard case.

Warranty: The RUK30s are covered by the Koss Stereophones Limited Lifetime Warranty.

Specifications:

  • Frequency Response: 15Hz-20kHz
  • Sensitivity (dB/1mW): 110dB
  • Nominal Impedance: 16 ohms

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