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Koss QZ900 Noise Cancellation Headphone (Black)
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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Koss PortaPro – Headphones ( semi-open )
The PortaPro features dynamic elements that deliver exceptionally rich, deep bass and a remarkably wide frequency response to capture every nuance in your favorite movie or musical performance. Constructed from mylar, the elements are extremely rigid, minimizing mechanical distortion and ensuring exceedingly accurate sound reproduction. Neodymium iron boron rare earth magnet structures enable the PortaPro to deliver greater volume so you can hear every note, even when competing against the sounds of a commuter train with a low-voltage MP3 or disc player. Oxygen free copper voice coils improve signal transmission and conduction for cleaner, clearer sound. Foam earcushions provide an open, hear-through sound that lets you keep in touch with your surroundings perfect to wear while running, at work, or while traveling.
Manufacturer: Koss Corporation
Manufacturer Part Number: 163931
Manufacturer Website Address:
Brand Name: Koss
Product Name: PortaPro Stereo Headphone
Product Type: Headphone
Connectivity Technology: Wired
Wireless Technology: Not Applicable
Cable Length: 48″
Sound Mode: Stereo
Impedance: 60 Ohm
Minimum Frequency Response: 15 Hz
Maximum Frequency Response: 25 kHz
Earpiece Design: Over-the-head
Earpiece Type: Binaural
Host Interface: Mini-phone
Form Factor: Semi-open
Weight (Approximate): 2.10 oz
Standard Warranty: Lifetime
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Koss Scanner Headphone Red Isolation
The Koss Race Tracker stereophone is an extra-durable stereophone that delivers amazing passive noise reduction. Like the QZ99, the Race Tracker was initially designed for use with racing radio scanners and metal detectors users, and provided a behind-the-head headband design. Since then, the Race Tracker has become a favorite for a wide range of listeners who need to cut high levels of ambient noise and do not want the constraints of a conventional headband.
Koss P9 In-Ear Headphones with Volume Control
Koss P9 Portable Binaural Headphone P9 079 Headphones & Earphones
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Koss R-10 Home Headphones
Dynamic element for extended frequency response; Closed leatherette ear cushions for isloation; Pivoting earcup for flexible movement; Adjustable headband for best fit; Includes 1/8″ and 1/4″ stereo plugs for home and portable use; Frequency response: 30-20,000 Hz.
Koss CLIPPERBLU Sportclip Lightweight Clip-on Stereophone with
Koss ClipperB Earphone – Stereo CLIPPER BLUE Headphones & Earphones
Koss CLIPPERBLU Sportclip Lightweight Clip-on Stereophone with In-line Volume Control
Koss Pro4AAA Titanium Stereophone
Koss PRO4AAT Headphone – Stereo P4AAAT ML Headphones & Earphones
Koss Professional DJ Stereo Headphones – Koss PRODJ 100
Koss Professional DJ Stereo Headphones – Koss PRODJ 100.
Koss MV1 Professional Studio Stereophone
Stereophone features titanium coating on a 2 mil. high polymer diaphragm OFC voice coilComputer optimized ferrite magnet structures provide deep bass and treble claritySound isolation eliminates ambiant noise and maximizes bassAdaptable steel and rubber headbandFoldable for convenient storage and travelIncludes case 8′ cord 3.5mm with 6.3mm adapter
Koss KE29S Isolating Earbud (Silver)
The Koss KE29S is a portable isolation earbud stereophone. With a dynamic element for extended frequency response of 15-20,000 Hz. This compact design provides a robust sound. The KE29S is a lightweight, in-the-ear earbud for music on-the-go. The straight, dual entry 4 foot cord includes an inline volume control. A convenient carrying case provides protective storage and the small, medium and large silicone ear cushions included allow for a customized fit.
