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Koss QZ-99 Passive Noise Reduction Over-Ear Stereo Headphones

Koss QZ-99 Passive Noise Reduction Over-Ear Stereo Headphones
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General Information

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.

Technical Information
Connectivity Technology:Wired
Cable Length:8 ft
Sound Mode:Stereo
Impedance:60 Ohm
Minimum Frequency Response:40 Hz
Maximum Frequency Response:20 kHz
Features:Built-in Clip
Features:Pivot Mechanism
Features:Comfortable
Noise Canceling:Yes
Sound Pressure Level:102 dB

Earpiece
Earpiece Design:Over-the-ear
Earpiece Design:Over-the-head
Earpiece Type:Binaural

Interfaces/Ports
Host Interface:Mini-phone (3.5mm)

Physical Characteristics
Product Color:Black
Form Factor:Circumaural
Height:8.6"
Width:8.6"

Warranty
Limited Warranty:Lifetime

WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov.
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Shipping Restrictions
  • This item cannot be shipped to PO Boxes.
  • This item can be shipped only within the U.S.


  • UPC: 021299134122 
  • Mfr's Part #: 180125