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Koss

Koss KSC21 Ear Clip Headphones

$9.99
$5.92 SAVE $4.07
197 availableas of 09/18/2026

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Should arrive by Wed, Sep 30 with free ground shipping

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

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Secure checkoutISO 9001:2015 and CMMC certifiedFamily owned since 1982

Free shipping on most items when you spend $100 or more.

Real people answer: chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.

Overview

Enjoy 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. When you choose the KSC21, you're rewarded with the comfort of pivoting ear plates, and the great, crisp and clean Sound of Koss.

Technical specifications

General Information

Manufacturer Koss Corporation
Manufacturer Part Number KSC 21
Manufacturer Website Address http://www.koss.com
Brand Name Koss
Product Model KSC21
Product Name KSC21 Ear Clip Headphones
Product Type Headphone

Technical Information

Connectivity Technology Wired
Cable Length 4 ft
Sound Mode Stereo
Impedance 36 Ohm
Minimum Frequency Response 50 Hz
Maximum Frequency Response 18 kHz
Features Comfortable

Earpiece

Earpiece Design Over-the-ear
Earpiece Type Binaural
Earpiece Sensitivity 101 dB

Interfaces/Ports

Host Interface Mini-phone (3.5mm)

Physical Characteristics

Product Material Foam
Form Factor Supra-aural
Weight (Approximate) 1.20 oz

Warranty

Limited Warranty Lifetime

Ratings and reviews

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Shipping and returns

Free shipping on most items when you spend $100 or more. In-stock items ship on the next open shipment slot. The buy box above shows the live order-by countdown and the estimated arrival date.

Need to send it back? Start a return online with a Request RMA and our team will take care of you. Keep the original packaging. Items must be returned in the condition received.

Questions about shipping or returns? Chat with us, email customerservice@colamco.com, or call 1-800-692-8757, Monday to Friday, 8am to 5pm EST.