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Merchant & Rating Product Details Price* Sales Tax* Availability* Buy.com Read Reviews: 3 / 5 KOSS CORPORATION Koss QZ-5 QuietZone Passive Noise Reduction Headphones with Velcro Headstrap New advances in materials and design have served to expand the performance of stereophones. Koss' Product Development team and engineers look for the most innovative combinations of existing and new technologies to deliver the most exciting products possible. $34.99 Buy it from Buy.com CA, IN, MA See Site Product Reviews from Amazon.com (Rating System 1 to 5) Review Rating Last Updated Excellent sound I mainly use this item for my job as a medical transcriptionist, which means that I wear these on my head for eight hours a day, five days a week. I've tried many other brands of headphones and these are by far the most comfortable to wear for long periods of time. They do not press hard into the ears or cause them to get "hot". Soundwise, they are excellent at cancelling constant background noises and hums. Even so, I can still clearly hear the conversations of people around me. I mainly use these headphones to listen to the dications of physicians, however, music sounds great on them as well. 5 811 days ago Great noise reducing headphones Initially I bought these for NASCAR races. After getting an iPod I realized that mowing the lawn could be a little less painfull thanks to these headphones. I now bring them on flights to help me pass the time in quite comfort. These are the same as phones offered by Radio Shack but the Radio Shack product does not have the Stereo/Mono Switch that these have. <br /> <br />Sound quality is great - noise reduction is awesome. Reasonble price and free shipping. Hard to beat. 5 811 days ago Hi performance, good warranty Active noise reduction systems (e.g. QZ-2000) have microphones to measure ambient noise waves. They then add a signal to the headphone output that is equal and opposite in phase which cancels noise, and this is especially effective for low frequency noise. The QZ-2000 active cancellation (based upon my experience on airplanes and in noisy HVAC environments) is terrific. The relatively open design supplies little passive absorption of noise, but allows you to hear conversation. When my QZ-2000s broke (after rattling around my computer bag for several years and many trips), Koss fixed them free, good as new. QZs are cheaper by half than one popular (ryhmes with "hose") unit, but the latter offers both active and passive NR. If you are trying to kill higher frequency noises and don't need to hear anything ambient, you may wish to consider the "Hose" or other units with passive (muffling) NR. <br /> <br />I hook the QZ-2000s up to my PDA, which I use as a jukebox, on cross-country flights. Noise reduction terrific, sound quality very good (but not quite Pro 4AA), battery life outstanding, reasonable price. Physical durability has not been horrible, but could be better. Outstanding mfr service after sale. <br /> <br />Man, I wish that they would create a similar unit with a mike on a mini-boom for telephone and computer VOIP use. 5 811 days ago the work but are not durable or for the big heads i bought a pair at a local store in late 2001 for use at work and on occasional airplane flights. they work well. but they press on the earlobe too much to be comfortable without pain for more than 3-4 hours at a time. maybe its my large head or maybe its just these phones. <br /> <br />they fold up nicely and include a good travel bag. a pair of rechargable AA batteries in these lasts seemingly forever. <br /> <br />regardless, the foam cover on them has completely deteriorated and i can't find anywhere that sells a replacement. bad! <br /> <br />pick other headphones with a vynil or velvet liner rather than foam if you'll be using these a lot. 3 811 days ago Fragile but functional I have returned two sets of the QZ-2000 in 6 years for repair due to AC hum pickup in the device. Not a particularly durable track record. The unit does work well, though, in getting rid of low intensity, low frequency ambient sounds, like on an airplane, with or without an audio playback device attached. Open headphone design is not that effective against really loud ambient noise like on the subway. Having the batteries and logic in an external box is cumbersome. Batteries last forever. Overall, I would look into getting a self-contained, closed earcup design if I get tired of sending mine in over and over again for "lifetime" warranty repair. 2 811 days ago Merchant Details for Buy.com Overall Rating: 3 out of 5 Rating Provider Rating Rating System Reviews Last Updated BizRate.com 8.2 Scale 1 to 10 Read Reviews 30+ days ago ResellerRatings.com 3.80 Scale 1 to 10 Read Reviews 30+ days ago  We thought you might be interested in other BEST DEALS that we found for you: Home Theatre Systems SONY-DAV-X1V in Home Theatre Systems SONY DAV-X1V 4 Listings Best Price $499.89 Save up to 32% PANASONIC-SC-PTX7 in Home Theatre Systems PANASONIC SC-PTX7 7 Listings Best Price $549.99 Save up to 31% JVC-DD3 in Home Theatre Systems Home Theater System 5 Listings Best Price $699.99 Save up to 23% Speakers and Subwoofers ACOUSTIC RESEARCH-AW811 in Speakers and Subwoofers 900MHz Wireless Indoor/Outdoor Speaker (each) - AW811 4 Listings Best Price $56.95 Save up to 41% ALTEC LANSING-INMOTION in Speakers and Subwoofers INMOTION IPOD SPK-PORTABLE DOCK 4W 4 Listings Best Price $69.95 Save up to 30% PHOENIX GOLD-ATC-8 in Speakers and Subwoofers Phoenix Gold ATC-8 8 200 Watt 2-Way In-Ceiling Speakers 4 Listings Best Price $79.95 Save up to 27% Receivers JVC-RXD205S in Receivers JVC RXD205S 7-channel Audio/Video Control Receiver in silver 110 Watts X7 Power w/ JVC Exclusive... 6 Listings Best Price $173.54 Save up to 37% JVC-RXD301S in Receivers JVC RXD301S 110-Watts per channel Audio / Video Control Receiver with Wireless PC Connectivity 6 Listings Best Price $189.88 Save up to 43% All Best Deals *Pricing and product information listed is obtained from the merchants and is subject to change without notice. Shipping costs are estimated based on UPS ground within US, unless specified otherwise. While we try to validate this information,we cannot assure its validity and therefore disclaim any responsibility for its accuracy or completeness. Always check the latest price, availability, shipping, tax, and product information directly on the merchant web site before purchasing. Best Price Comparison  Best Deals  About Us  My Account  Useful Sites   Shopping Directory:   Best Price Comparison1 Best Price Comparison2 Best Price Comparison3 price comparison shopping compare prices compare prices online shopping bot online price comparison price comparison site online shopping comparison product price comparison Compare Prices Map2 All Rights Reserved - AimLower.com - 2008-08-30Read our Disclaimer and Privacy Policy Powered by