Koss - QZ 900 Noise Cancelling 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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    What's Included

    • Koss QZ 900 Over-the-Ear Headphones

    Ratings & Reviews

    Overall Customer Rating:
    0% of customers would recommend this product to a friend (0 out of 1)


    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.

    Customer rating

    would recommend to a friend
    • Rating: 1 out of 5 stars

      Very poor quality

      • Verified PurchaserVerified Purchase
      • My Best Buy® MemberMember

      The headphones broke where they connect at the head strap after only a few uses. I only wore them while sitting at the computer. Considering the price paid, they should have lasted a very long time with such gentle use. It's too late to return them and I am out close to $200. Do not buy!

      No, I would not recommend this to a friend

    Product images, including color, may differ from actual product appearance.