Koss KSC21 Wired Over-the-ear Stereo Headphones, Comfortable Foam Cushions, 4ft Cable, 3.5mm Jack, 50Hz-18kHz Response, Binaural Sound, Lifetime Warranty

Koss KSC21 ear clip headphones showing front and side view with black and silver finish and foam ear cushions-alternate-image1
Koss KSC21 ear clip headphones showing front and side view with black and silver finish and foam ear cushions-alternate-image1
Koss KSC21 ear clip headphones showing front and side view with black and silver finish and foam ear cushions-alternate-image1
Koss KSC21 Wired Over-the-ear Stereo Headphones, Comforta...
Koss KSC21 ear clip headphones showing front and side view with black and silver finish and foam ear cushions-alternate-image1

Koss KSC21 Wired Over-the-ear Stereo Headphones, Comfortable Foam Cushions, 4ft Cable, 3.5mm Jack, 50Hz-18kHz Response, Binaural Sound, Lifetime Warranty

Koss KSC 21

$17.49
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Availability: In stock , ready to be shipped .
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  • Lifetime Warranty
  • 30 Day Returns
  • Carbon Neutral

Product Key Features

  • 🎧 Over-the-ear stereo headphones with comfortable foam cushions
  • 📏 4ft cable with 3.5mm jack for universal compatibility
  • 🎵 Wide frequency response range: 50Hz-18kHz
  • 🔊 High sensitivity at 101 dB for clear audio
  • ⚡ 36 Ohm impedance for efficient power handling
  • 👂 Binaural design for immersive sound experience
  • 🪶 Ultra-lightweight at just 1.20 oz
  • 🛡️ Backed by lifetime warranty
  • 🎯 Supra-aural form factor with pivoting ear plates
  • 🔓 Open, hear-through design for environmental awareness
$17.49
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Koss KSC21 Wired Over-the-ear Stereo Headphones, Comfortable Foam Cushions, 4ft Cable, 3.5mm Jack, 50Hz-18kHz Response, Binaural Sound, Lifetime Warranty

This item: Koss KSC21 Wired Over-the-ear Stereo Headphones, Comforta...

$17.49

Total price: $17.49
  • Description
  • Tech Specs
  • Refund Policy

Koss

KSC 21

Koss KSC21 Wired Over-the-ear Stereo Headphones with Lifetime Warranty

Experience superior audio quality with the Koss KSC21 over-the-ear stereo headphones, featuring comfortable foam cushions and a practical 4ft cable with 3.5mm jack. These lightweight headphones deliver exceptional sound performance with a frequency response range of 50Hz-18kHz, ensuring crisp highs and rich lows for an immersive listening experience.

Premium Audio Performance & Comfort

The KSC21 headphones feature a binaural design with pivoting ear plates and soft foam cushions, providing maximum comfort during extended listening sessions. With an impedance of 36 Ohms and sensitivity of 101 dB, these headphones deliver clear, balanced sound while maintaining awareness of your surroundings.

Key Features:
  • Wide frequency response range: 50Hz-18kHz
  • Comfortable foam cushions with over-the-ear design
  • 4ft cable with 3.5mm mini-phone jack
  • Lightweight construction at just 1.20 oz
  • Supra-aural form factor for enhanced comfort

Technical Excellence & Durability

The Koss KSC21 combines superior audio technology with practical design features. The stereo sound mode delivers immersive audio quality, while the 4-foot cable provides ample length for comfortable use. These headphones are backed by Koss Corporation's lifetime warranty, ensuring long-term reliability and customer satisfaction.

Professional-Grade Specifications

  • Connectivity: Wired with 3.5mm jack compatibility
  • Sound Configuration: Stereo binaural output
  • Impedance Rating: 36 Ohm for optimal performance
  • Sensitivity: 101 dB for clear audio reproduction
  • Design: Supra-aural with foam cushioning
  • Warranty: Lifetime limited warranty coverage

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.

Koss KSC21 ear clip headphones showing front and side view with black and silver finish and foam ear cushions

Sleek Comfort Meets Crystal Clear Sound in Lightweight Design

The Koss KSC21 ear clip headphones showcase an elegant blend of form and function, featuring a sophisticated black and silver design that perfectly balances style with practicality. The pivoting ear plates and foam cushions work in harmony to deliver exceptional comfort during extended listening sessions, while maintaining awareness of your surroundings. The thoughtfully engineered clip-on mechanism ensures a secure fit without applying unnecessary pressure, making these headphones ideal for active lifestyles. With their extended frequency response range of 50 Hz to 18 kHz, these headphones deliver rich, detailed audio while the open-air design maintains natural ambient sound awareness.

Technical Specifications

  • 🎧 36 Ohm impedance for optimal sound clarity
  • 🔊 101 dB sensitivity for powerful audio output
  • 📏 4-foot cable length for freedom of movement

Applications

  • 🏃 Perfect for jogging and outdoor activities
  • 🎵 Ideal for commuting while staying aware of surroundings
  • 💻 Comfortable for extended work-from-home sessions
Return Policy Time to Return
Standard Return Policy We offer a hassle-free 30-day returns policy for domestic (US) orders, excluding non-refundable items. Refund or Replacement within 30 days of the delivery date. All products that fall under the Standard Return Policy qualify for our 30-Day Hassle-Free Returns.
Replacement Only Return Policy Replacement within 30 days of the delivery date.
Manufacturer Only Return Policy Covered by the manufacturer's warranty. Please refer to the terms and conditions for the manufacturer's warranty or contact the manufacturer.
FAQ
The Koss KSC21 are wired over-the-ear stereo headphones featuring comfortable foam cushions, a 4-foot cable, and 3.5mm jack connectivity. They offer a frequency response range of 50Hz-18kHz, binaural sound delivery, and pivoting ear plates for enhanced comfort. The headphones are notably lightweight at 1.2 ounces and come with Koss's lifetime warranty. They're designed with an open, hear-through sound that allows users to stay aware of their surroundings while enjoying high-fidelity audio.
The Koss KSC21 headphones feature a frequency response range of 50Hz to 18kHz. This range provides clear audio reproduction across low, mid, and high frequencies, delivering balanced sound quality suitable for various types of music and audio content. The 50Hz lower limit ensures decent bass response, while the 18kHz upper limit covers the majority of audible high frequencies.
The Koss KSC21 headphones come with a 4-foot (1.2 meters) cable. This cable length provides sufficient reach from your audio device while remaining manageable for everyday use. The cable terminates in a standard 3.5mm mini-phone jack, making it compatible with a wide range of audio devices.
The Koss KSC21 headphones come with a lifetime limited warranty, which is a standout feature in the headphone market. This warranty demonstrates Koss's confidence in their product's durability and commitment to customer satisfaction. It provides long-term peace of mind for users investing in these headphones.
The Koss KSC21 headphones are extremely lightweight, weighing approximately 1.20 ounces (34 grams). This minimal weight, combined with their over-the-ear design and foam cushions, makes them comfortable for extended wearing periods and ideal for active use.
The Koss KSC21 headphones have an impedance of 36 Ohms. This moderate impedance level makes them suitable for use with a wide range of portable devices like smartphones, tablets, and music players, ensuring efficient power delivery and good sound quality without requiring additional amplification.
The Koss KSC21 features a supra-aural (over-the-ear) design with pivoting ear plates and soft foam cushions. They use a binaural configuration, meaning they deliver stereo sound to both ears. The open, hear-through design allows users to maintain awareness of their surroundings while enjoying their audio content.
The Koss KSC21 headphones have a sensitivity rating of 101 dB. This high sensitivity means they can produce loud, clear sound even with lower-powered devices. The 101 dB sensitivity, combined with the 36-ohm impedance, ensures efficient performance across various portable audio devices.

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