---
product_id: 266656770
title: "Koss KSC21 17.8 x 7.6 1.9 cm ; 45.4 g Sportclip Clip-On Headphones (3.5 mm Jack) for iMac/Laptop/iPhone/iPad/iPod/MP3 Players/Samsung/Smartphones - Black, Wired"
brand: "koss"
price: "FREE"
currency: EUR
in_stock: false
category: "Koss"
url: https://www.desertcart.fr/products/266656770-koss-ksc21-17-8-x-7-6-1-9-cm
store_origin: FR
region: France
---

# Lightweight sportclip design Secure fit for active lifestyles 40-20,000Hz frequency response Koss KSC21 17.8 x 7.6 1.9 cm ; 45.4 g Sportclip Clip-On Headphones (3.5 mm Jack) for iMac/Laptop/iPhone/iPad/iPod/MP3 Players/Samsung/Smartphones - Black, Wired

**Brand:** koss
**Price:** FREE
**Availability:** ❌ Out of Stock

## Summary

> 🎧 Elevate your active sound game—comfort and clarity that keep pace with you!

## Quick Answers

- **What is this?** Koss KSC21 17.8 x 7.6 1.9 cm ; 45.4 g Sportclip Clip-On Headphones (3.5 mm Jack) for iMac/Laptop/iPhone/iPad/iPod/MP3 Players/Samsung/Smartphones - Black, Wired by koss
- **How much does it cost?** FREE with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/266656770-koss-ksc21-17-8-x-7-6-1-9-cm)

## Best For

- koss enthusiasts

## Why This Product

- Trusted koss brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Sport-Ready Durability:** Lightweight yet robust design tailored for sports and exercise, so you never miss a beat while on the move.
- • **Tangle-Free Convenience:** Straight, dual-entry 1.2m cord designed for hassle-free movement and durability during your active routines.
- • **Universal Compatibility:** Seamlessly plugs into any device with a 3.5mm jack—from iPhones to laptops—keeping you connected everywhere.
- • **Effortless All-Day Comfort:** Pivoting ear plates and foam cushions ensure a perfect, breathable fit that stays put during your toughest workouts.
- • **Crystal-Clear Sound Clarity:** Dynamic drivers deliver an extended 40-20,000Hz frequency range for rich, immersive audio whether on calls or playlists.

## Overview

The Koss KSC21 SportClip headphones combine a lightweight, pivoting ear-clip design with dynamic drivers delivering a wide 40-20,000Hz frequency response. Engineered for sports and exercise, they offer breathable foam cushions and a secure fit, compatible with any device featuring a 3.5mm jack. With a durable 1.2m dual-entry cord, these wired headphones provide clear, open sound ideal for professionals balancing active lifestyles and seamless connectivity.

## Description

Product Description The Original StereophoneFor some, music is a nice distraction. A thing to tap your toes to. For us, music isn’t a thing; it’s a place we go. We are the true believers.Koss has been bringing people closer to the music they love for more than 50 years. The first Stereophone (SP/3) in the world was created by John C. Koss and Martin Lange in 1958 and since then, Koss’ innovative products have gone from strength to strength with a range now including Full Size Stereophones, On-Ear Stereophones, In-Ear Stereophones, Ear-Clip Stereophones, Wireless Stereophones and Communication Headsets. Now, more than 50 years later….Koss’ creation has become a $2 billion industry, worldwide.Three principles serve as the foundation for the company’s success: The sound of Koss; focus on fit and breakthrough customer service. What do these principles mean?The sound of Koss: Musician, John C. Koss created “the sound of Koss” in 1958 and we have stayed true to it to this every day. The sound of Koss brings music back to life. Koss engineers are rigorous in their pursuit of the absolute best sound but it is the human listening experience that sets Koss apart.Focus on fit: We are obsessed with creating the absolute perfect fit – without it; we can’t get the perfect sound. We strive to create products that offer custom settings for every music lover. Our products couple to the ear – it’s just you and your music.Breakthrough customer service: Koss was the first to offer Limited Lifetime Warranty in 1989. Our domestic customer support staff is ready to help any listener with any issue. The Koss US factory and warehouse is based in Milwaukee Wisconsin – logistically, Koss has created an onsite inventory system that makes “out-of-stocks” virtually impossible. With that in mind, what do the KSC21 SportClip Stereophones have to offer you?Koss KSC21 SportClip StereophonesEnjoy high fidelity sound quality while remaining connected to the outside world with the Koss KSC21 sport clip headphones. These over-the-ear headphones deliver a wide-range, extended frequency response through soft foam ear cushions that guarantee an open, hear-through sound. The pivoting ear plates provide a better fit than most clips, so you can place them exactly for the perfect fit.KSC21’s are super light making them feel practically weightless, even after hours of high fidelity listening and the straight, dual entry 4 foot cord with 3.5mm plug allows you extensive freedom of movement to ensure that you can position the headphones for optimum listening. When not in use, simply tuck them into your briefcase, gym bag or pocket and carry them with you wherever you go.This is all backed up by the Koss Stereophones Limited Lifetime Warranty.When you choose the KSC21, you’re rewarded with only the best sound. Set Contains: 1 x "KSC21" sportclip headphones

## Features

- Lightweight sportclip design with pivoting ear plates for a better fit
- Extended 40-20,000Hz frequency response
- Improved signal transmission and conduction for cleaner, clearer sound
- Ear cushions guarantee an open, hear-through sound
- Includes a straight, dual-entry 4 foot cord with 3.5 mm (1/8-inch) plug
- Frequency Response: 40-20,000 Hz
- Dynamic element for extended frequency response
- Lightweight Sportclip design
- Foam cushions for an open, hear-through sound
- Straight, dual entry 1.2m cord and 3.5mm jack plug

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004WD1F1O |
| Additional Features | Sports_&_Exercise, Volume Control |
| Age Range Description | Adult |
| Antenna Location | Exercising, Running |
| Audio Driver Type | Dynamic Driver |
| Best Sellers Rank | #194,084 in Electronics ( See Top 100 in Electronics ) #676 in On-Ear Headphones |
| Bluetooth Version | 5 |
| Bluetooth support? | No |
| Brand | Koss |
| Built-In Media | See Specs |
| Cable Features | Retractable |
| Carrying Case Color | Black |
| Carrying Case Weight | 50 Grams |
| Color | black |
| Compatible Devices | Most devices with a 3.5 mm audio jack, including smartphones, laptops, and MP3 players |
| Connectivity Technology | Wired |
| Control Method | Remote |
| Control Type | Volume Control |
| Controller Type | Touch |
| Customer Package Type | Standard Packaging |
| Customer Reviews | 4.0 4.0 out of 5 stars (629) |
| Earpiece Shape | Angled ear hook with over-ear cups |
| Enclosure Material | Plastic |
| Frequency Range | 20Hz - 20kHz |
| Frequency Response | 20000 Hz |
| Generation | 1 |
| Hardware Interface | 3.5mm Audio |
| Headphone Folding Features | On Ear |
| Headphone Jack | 3.5 mm Jack |
| Headphones Ear Placement | Open Ear |
| Impedance | 26 Ohms |
| Input-Device Interface | 3.5mm audio jack |
| Is Autographed | No |
| Is Electric | No |
| Item Type Name | Koss KSC21 SportClip Clip-On Headphones,Black |
| Item Weight | 1.6 Ounces |
| Manufacturer | Koss |
| Mfr Part Number | KSC21 |
| Model Name | KSC21 |
| Model Number | KSC21 |
| Noise Control | None |
| Number of Items | 1 |
| Number of Packs | 1 |
| Sensitivity | 101 dB |
| Series Number | 21 |
| Specific Uses For Product | Sports and Exercise |
| Style Name | Sporty |
| Subject Character | no character |
| Theme | No Theme |
| UPC | 021299175545 |
| Unit Count | 1.0 Count |
| Water Resistance Level | Not Water Resistant |
| Wireless Technology | Bluetooth |

## Product Details

- **Brand:** Koss
- **Colour:** black
- **Ear placement:** Open Ear
- **Form factor:** On Ear
- **Impedance:** 26 Ohms

## Images

![Koss KSC21 17.8 x 7.6 1.9 cm ; 45.4 g Sportclip Clip-On Headphones (3.5 mm Jack) for iMac/Laptop/iPhone/iPad/iPod/MP3 Players/Samsung/Smartphones - Black, Wired - Image 1](https://m.media-amazon.com/images/I/61F8pZ7PfoL.jpg)

## Available Options

This product comes in different **Customer Package Type, Size** options.

## Frequently Bought Together

- Koss KSC21 SportClip Clip-On Headphones,Black
- Koss KSC75 Portable On-Ear Clip Headphones, Retro Style, Ultra Lightweight, Silver and Black
- Audio Technica ATH-EQ300M PL Purple | Ear-Fit Headphones (Japan Import)

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-11-13*