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KOSS 165789 Qzpro Noise-Reducing Headphones

  • 40Hz-20KHz
  • 4ft. Cord Length
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Learn more about the Koss 165789



General SPEC

Frequency Response
Input Impedance
32 ohms
90 dB SPL/1mW
Cord Length


Noise reduction circuitry can be turned on and off with a flip of a switch.

Delivers combination of passive and active noise reduction (ANR).

Active noise reduction circuitry built directly into the ear cups.

Soft vinyl, closed cushions create a seal around the ear, Extra-soft, padded headband.

4-ft single entry, straight cord, Requires 2 AAA batteries for approx 30 hours of continuous play.

Manufacturer Warranty

Lifetime limited
Lifetime limited

Quick Info


  • Limited Warranty period (parts): Lifetime
  • Limited Warranty period (labor): Lifetime

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