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Koss QZ900 Noise Cancelling Headphones

Model: QZ900

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Specifications

None

Cord length 4.0' (1.22 m)
Frequency response 20-20,000 Hz
Sensitivity 100 dB SPL
Battery 1x AAA
Battery life ~ 50 hours of active noise cancellation
Type Full size headphones
Impedance 32 ohms
Cord type Straight, single entry
Expert Reviews
Rtings.35051759
29 February 2016
5.8/10

The QZ900 do well as everyday casual headphones. They lack a little isolation for loud environments but perform decently well under other test cases. Sadly their sound quality is not the best.

  • +

    Lightweight and comfortable., Great seal, leaks very little sound.

  • -

    Poor in-line control options., All plastic build, feels cheap., Bass-heavy audio reproduction.

User Reviews
21 April 2013
10/10

Excellent product and does everything I want. . . . . . . . . . . . . .

Product Highlights
  • Active Noise Cancellation
  • Works With Or Without Noise Cancellation
  • In-Line Volume Control
  • Fold Flat For Storage/Travel
  • Can Be Used To Block Out External Noise
In The Box
  • Koss QZ900 Noise Cancelling Headphones
  • Carrying Case
  • Limited Lifetime Warranty
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