Koss QZ99 Over Ear Headphones, Noise Canceling, Stereo Sound, Circumaural Design, 40Hz-20kHz Frequency Response, 8ft Cable, 3.5mm Jack, Built-in Volume Control, Black - 180125 (Lifetime Warranty)

Koss QZ99 over-ear noise-canceling headphones in black with adjustable headband and volume control knob-alternate-image1
Koss QZ99 over-ear noise-canceling headphones in black with adjustable headband and volume control knob-alternate-image1
Koss QZ99 over-ear noise-canceling headphones in black with adjustable headband and volume control knob-alternate-image1
Koss QZ99 Over Ear Headphones, Noise Canceling, Stereo So...
Koss QZ99 over-ear noise-canceling headphones in black with adjustable headband and volume control knob-alternate-image1

Koss QZ99 Over Ear Headphones, Noise Canceling, Stereo Sound, Circumaural Design, 40Hz-20kHz Frequency Response, 8ft Cable, 3.5mm Jack, Built-in Volume Control, Black - 180125 (Lifetime Warranty)

Koss 180125

$80.49
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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-ear design with passive noise reduction technology
  • 🔊 40Hz - 20kHz frequency response with 102dB sound pressure
  • 📏 8ft cable with 3.5mm mini-phone connector
  • 🎵 Stereo sound with 60 Ohm impedance
  • 🔄 Features volume control and stereo/mono switch
  • 💫 Neodymium magnet structures for superior clarity
  • 🛡️ Pneumalite™ ear cushions for ambient noise isolation
  • ⚡ Built-in clip and pivot mechanism for flexibility
  • 📐 8.6" x 8.6" circumaural form factor
  • ⭐ Lifetime limited warranty
$80.49
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Koss QZ99 Over Ear Headphones, Noise Canceling, Stereo Sound, Circumaural Design, 40Hz-20kHz Frequency Response, 8ft Cable, 3.5mm Jack, Built-in Volume Control, Black - 180125 (Lifetime Warranty)

This item: Koss QZ99 Over Ear Headphones, Noise Canceling, Stereo So...

$80.49

Total price: $80.49
  • Description
  • Tech Specs
  • Refund Policy

Koss

180125

Koss QZ99 Over Ear Headphones: Professional-Grade Noise Canceling with Superior Sound Quality

Experience exceptional audio isolation with the Koss QZ99 Passive Noise Reduction headphones, featuring premium Pneumalite™ ear cushions and neodymium magnet structures for outstanding clarity. Originally engineered for racing radio scanner and metal detector enthusiasts, these over-ear headphones deliver professional-grade sound quality with an impressive frequency response range of 40 Hz to 20 kHz.

Advanced Noise Cancellation Technology

The QZ99's closed Pneumalite™ ear cushions create a superior seal around your ears, effectively eliminating ambient noise. Combined with the extra-secure over-the-head design, these headphones provide exceptional noise isolation for focused listening in any environment.

Key Features:
  • Professional-grade passive noise reduction
  • Neodymium magnet structures for crystal-clear sound
  • Convenient volume control on ear cup
  • Stereo/mono switch for enhanced flexibility
  • Generous 8 ft cable with 3.5mm mini-phone connector

Premium Audio Performance Specifications

  • Impressive frequency response: 40 Hz - 20 kHz
  • Powerful 102 dB Sound Pressure Level
  • 60 Ohm impedance for optimal audio delivery
  • Binaural circumaural design for immersive listening
  • Stereo sound mode for authentic audio reproduction

Durability and Comfort

Built for both indoor and outdoor use, the QZ99 features a robust construction with a pivot mechanism for perfect fit adjustment. The comfortable over-the-ear design with Pneumalite™ cushioning ensures extended listening sessions remain pleasant, while the built-in clip keeps cables managed and secure.

Additional Benefits:
  • Lifetime limited warranty
  • Versatile 8.6" x 8.6" form factor
  • Professional black finish
  • Includes convenient built-in clip

The Koss QZ99 Passive Noise Reduction headphones were initially designed for racing radio scanner and metal detector users, with its superior isolating capabilities and secure over-the-head headband design. It has since become a favorite for audiophiles who crave the ability to cut out high levels of ambient noise. The QZ99 are not only for noise isolation, but also for sound quality.


The QZ99 Passive Noise Reduction headphones sport neodymium magnet structures that deliver outstanding clarity and definition. The closed Pneumalite™ ear cushions and extra-secure headband create a tight seal around the ear eliminating all ambient noise. Durable and built to withstand the rigors of indoor and outdoor use, the Koss QZ99 also includes a volume control on the ear cup that makes adjusting sound levels a snap, and a stereo/mono switch that extends user flexibility. Sporty and strong with superior sound quality, these Passive Noise Reduction headphones are every audiophile's dream.

Koss QZ99 over-ear noise-canceling headphones in black with adjustable headband and volume control knob

Superior Noise Isolation with Premium Comfort Design

The Koss QZ99 headphones feature a robust over-ear design with Pneumalite™ cushions that create an exceptional seal for maximum noise isolation. The premium circumaural build combines durability with ergonomic comfort, while the adjustable headband ensures a secure fit during extended listening sessions. Engineered with neodymium magnets, these headphones deliver crystal-clear audio across a wide 40 Hz - 20 kHz frequency range. The convenient volume control knob on the earcup allows for quick sound adjustments, while the stereo/mono switch provides enhanced listening flexibility for various audio sources.

Technical Specifications

  • 🎧 Passive noise reduction with specialized Pneumalite™ ear cushions
  • 🔊 Neodymium magnets for superior sound clarity (40 Hz - 20 kHz)
  • ⚡ 60 Ohm impedance for optimal audio performance
  • 📏 8-foot cable for extended reach and mobility

Applications

  • 🎵 Immersive music listening in noisy environments
  • 🏎️ Clear audio reception for racing scanner enthusiasts
  • 🎮 Extended gaming sessions with superior comfort
  • ✈️ Peaceful travel with excellent noise isolation
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 QZ99 features passive noise reduction technology, neodymium magnet structures for superior sound clarity, and Pneumalite™ ear cushions for optimal noise isolation. It comes with an 8ft cable, built-in volume control on the ear cup, and a stereo/mono switch. The headphones operate at 60 Ohm impedance with a frequency response of 40Hz-20kHz and 102dB sound pressure level. They feature a comfortable over-the-head design with circumaural ear cups and include convenient features like a pivot mechanism and built-in clip.
The Koss QZ99 uses passive noise reduction technology rather than active noise cancellation. This is achieved through the closed Pneumalite™ ear cushions and extra-secure headband design that creates a tight physical seal around the ears to block out ambient noise. This design was originally developed for racing radio scanner and metal detector users who needed superior noise isolation in loud environments.
The Koss QZ99 features impressive audio specifications including a frequency response range of 40Hz to 20kHz, 60 Ohm impedance, and 102dB sound pressure level. The headphones utilize neodymium magnet structures for enhanced sound clarity and definition. They support stereo sound mode and include a stereo/mono switch for flexible listening options.
The Koss QZ99 comes with an 8-foot (2.4m) cable that features a standard 3.5mm mini-phone connector. This cable length provides ample flexibility for various listening situations, whether connected to a stationary device or moving around with a portable device. The wired connection ensures consistent audio quality without the need for charging.
The Koss QZ99 headphones come with a lifetime limited warranty, demonstrating the manufacturer's confidence in the product's durability and build quality. This warranty coverage provides long-term peace of mind for users investing in these professional-grade headphones.
The QZ99 features several comfort-oriented design elements including Pneumalite™ ear cushions, an adjustable over-the-head headband, and circumaural (over-ear) form factor. The ear cups completely surround the ears for comfortable extended wear, while the pivot mechanism allows for optimal fit adjustment. The design focuses on both comfort and secure fit, making them suitable for long listening sessions.
Yes, the QZ99 is well-suited for professional use, particularly in high-noise environments. Originally designed for racing radio scanner and metal detector users, these headphones offer superior noise isolation, high-quality sound reproduction with neodymium magnets, and durable construction. The inclusion of a stereo/mono switch, volume control, and professional-grade specifications (60 Ohm impedance, 40Hz-20kHz frequency response) makes them versatile for various professional applications.
The Koss QZ99 headphones measure 8.6 inches in both height and width, featuring a black color scheme with a circumaural (over-ear) design. They include a pivot mechanism for adjustable fit, built-in volume control on the ear cup, and a stereo/mono switch. The design incorporates Pneumalite™ ear cushions and an extra-secure headband, making them both durable and suitable for indoor and outdoor use.

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