Koss - QZ 900 Over-the-Ear Headphones - Black

Cut through the noise with these Koss Quiet Zone headphones. Use active noise cancellation to neutralize environmental noise, or rely on the comfy padded ear cups to block distractions passively. These Koss Quiet Zone headphones have a compact, fold-flat design, and they run for up to 50 hours on one AAA battery.
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Normal Wear & Tear • Power Surges

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What's Included

  • Koss QZ 900 Over-the-Ear Headphones

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Product Features

Over-the-ear design

For a secure fit.

Noise cancellation

Effectively blocks out distracting background noises, so you can enjoy a focused, immersive sound environment.

3.5mm connector

Enables flexible connection options.

20Hz - 20kHz frequency response

For faithful sound reproduction.

32 ohms impedance

To efficiently conduct power.

100dB sensitivity

Delivers powerful sound.

Overall Customer Rating

(1 Review)

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