| Koss QZ900 Noise Cancellation Headphone (Black) |  | Brand: Koss
Category: CE
Department: Headphones
List Price: $249.99
Buy New: $236.30
as of 5/23/2012 16:51 MDT details
You Save: $13.69 (5%)
New (3) from $236.30
Seller: biddeal_co
Format: CD
Language: English (Original Language)
Platform: Windows
Color: Black
Media: Electronics
Autographed: No
Memorabilia: No
Number Of Items: 1
Operating System: Windows
Shipping Weight (lbs): 0
Dimensions (in): 8.3 x 8.1 x 3
Legal Disclaimer: Shipping is 3-5 days FedEx or UPS with tracking number. Brand New. Continental USA street address ONLY, we do not ship to P/O box, APO, AE, or international addresses
Warranty: Lifetime warranty
MPN: QZ900
Model: QZ900
UPC: 021299160077
EAN: 0021299160077
ASIN: B001R4M6KU
Availability: Usually ships in 1-2 business days
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| Features:
| • | Reduces harmful and annoying low frequency sounds in noisy environments | | • | Operates on 1 AAA battery for battery life of 50 hours (Not Included) | | • | Cord unplugs to enjoy passive and active noise cancellation wirelessly | | • | Folds flat for portability, carrying case included | | • | Straight, single entry 4 foot cord with inline volume control | | • | Dramatically Reduces Most Low Frequency Distractions From Airplanes, Lawn Mowers, Fans Or Even The Din Of An Office | | • | Freq Resp: 20 Hz-20 Khz; Imp: 32_ | | • | Operates With Or Without Active Noise-Canceling Circuit Engaged |
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Product Description
The QZ900, latest addition to the Koss Quiet Zone line - adds a new level of performance and comfort. Designed to monitor outside noise received through specially mounted microphones in each ear cup. Koss QZ900 circuit introduces a sound wave which is 180° out of phase with the incoming signal. The result is "zero earth" at the point of the eardrum and dramatic reduction of most low frequency distractions, resulting in deep rich lows and sparkling highs, noise canceling ability so good you'll need less volume for greater efficiency and less distortion from overdriving the tiny amplifier in your portable electronics. QZ900 operates with or without active noise canceling circuit engaged. Features a removable cord and an on line volume control and 1 standard AAA battery which provides approximately 50 hours of active noise cancellation.
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