Koss CL-5i On-Ear Headphones: Features and Everyday Use

By Koss Stereophones | Published: 2026-10-25

Category: How-to Guides

Learn how to get the most out of your Koss CL-5i on-ear headphones. This guide covers setup, daily use, and care tips for clear sound and lasting comfort.

Quick Answer

The Koss CL-5i on-ear headphones deliver deep bass and crisp highs in a lightweight, transparent design. Use this guide to set them up, operate the inline remote, and keep them sounding great.

What Makes the CL-5i Stand Out

The Koss CL-5i combines a unique clear transparent housing with soft leatherette cushions. This design keeps the headphones light enough for all-day wear while still producing the deep bass and clear highs that Koss is known for.

Because they are wired and passive, the CL-5i works with any device that has a 3.5mm headphone jack — no charging or Bluetooth pairing needed. The inline OneTouch remote adds convenience for calls and music control.

Trade-Offs to Consider

The CL-5i is an on-ear design, which means the cushions rest on your ears rather than around them. This can cause slight pressure during very long listening sessions. The leatherette padding helps, but if you prefer over-ear comfort, look for a larger model.

The cable is fixed and non-detachable. If the cable gets damaged, the entire headphone needs replacement. Handle the cord gently and avoid sharp bends near the jack.

How to Use and Care for Your Koss CL-5i

Unbox and Inspect: Remove the headphones from the packaging. Check that the cable, inline remote, and ear cushions are free of damage. The 3.5mm plug should be straight and clean. A quick inspection prevents connection issues later.
Adjust the Headband for Fit: Extend or shorten the headband arms so the ear cushions sit centered over your ears. The band should rest lightly on your head without pinching. If the fit feels too tight, extend the arms a notch. A proper fit reduces ear fatigue and keeps bass response consistent.
Connect to Your Device: Plug the 3.5mm jack firmly into your phone, tablet, laptop, or audio player. If the device has a headphone jack, it will work. For devices without a jack, use a USB-C or Lightning adapter (not included). Ensure the plug is fully inserted to avoid crackling or one-sided audio.
Use the Inline Remote: Press the OneTouch button once to play or pause music. Press twice quickly to skip to the next track. Press three times to go back. For calls, press once to answer and again to hang up. Hold the button to reject an incoming call. Practice the double- and triple-press timing — too slow may register as a single press.
Store and Clean Properly: When not in use, coil the cable loosely and store the headphones in a dry place away from direct sunlight. Wipe the leatherette cushions with a slightly damp cloth — never use alcohol or harsh cleaners. Avoid pulling the cable when unplugging; grip the plug instead. Gentle handling and regular cleaning extend the life of the cushions and cable.

Product Facts

CL-5i: The Koss CL-5i features a unique clear transparent design with soft leatherette cushions, deep bass and crisp highs. The transparent look is distinctive, and the leatherette cushions provide comfort during extended wear while the sound signature suits most music genres.
CL-5i
CL-5i: Includes an in-line OneTouch remote for taking calls and Pause/Play/Skip tracks. You can control music and answer calls without reaching for your phone, making the CL-5i practical for commutes or desk use.