Main Content
product image

Koss - QZ 900 Noise Cancelling Wired Over-the-Ear Headphones - Black

Model: QZ900
SKU: 9478488
This item is no longer available in new condition. See similar items below
  • Key Specs
    • Noise Cancelling (Active): true
    • Connection Type: Wired
    • Water Resistant: false (Resists some degree of water penetration.)
    • Carrying Case: true
    • Headphone Fit: Over-the-Ear
    • Adjustable Headband: false
  • General
    • Brand: Koss
    • Model Number: QZ900
    • Product Name: QZ 900 Noise Cancelling Wired Over-the-Ear Headphones
    • Color: Black
  • Audio
    • Noise Cancelling (Active): true
    • Sound Isolating: false
    • Minimum Frequency Response: 20 hertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The minimum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Maximum Frequency Response: 20 kilohertz (Describes the maximum range of frequencies or musical tones a product can reproduce, from very low tones to very high treble tones. The maximum frequency or musical tone the speaker can reproduce. High treble tones have higher frequencies while low tones and deep bass have lower frequencies.)
    • Impedance: 32 ohms (Describes the resistance of an electric signal throughout the system. Devices with low impedance require less power to deliver optimal signals but are more at risk for damage from overloading. Higher impedance requires more power but is more protected from overload damage.)
    • Sensitivity: 100 decibels adjusted
  • Connectivity
    • Connection Type: Wired
    • Connector Size: 1/8 in. (3.5mm)
    • Detachable Cord: true
  • Features
    • Water Resistant: false (Resists some degree of water penetration.)
    • Carrying Case: true
    • Body Metrics Measured: Not Applicable
    • Bone Conducting Technology: false
  • Design
    • Headphone Fit: Over-the-Ear
    • Style: Travel
    • Adjustable Headband: false
    • Foldable Design: false
  • Material
    • Ear Cushion Material: None
  • Dimensions
    • Cord Length: 3.9 feet
  • Other
    • UPC: 021299160077

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.

  • 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.
  • 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.
Whats Included
  • Koss QZ 900 Over-the-Ear Headphones
  • Koss QZ 900 Over-the-Ear Headphones

Reviews