Product Description The KOSS QZ5 Noise Reduction Stereophone Headphones are perfect those eager to enjoy music, but just as intent on protecting their hearing. Featuring neodymium magnet structures, the QZ/5 delivers all frequencies between 40Hz and 20kHz with outstanding clarity and definition. Lightweight, low profile nylon/Velcro headband allows easy adjustment, permitting user to wear a hat or cap Metal band behind the head holds the cups firmly in place for correct isolation Frequency Response - 40-20,000 Hz Impedance - 60 Ohms Weight - 15 ounces Sensitivity - 102dB SPL @ 1mW Distortion - < 0.3% About Passive-Noise-Reduction
Amazon.com Product Description The QZ/5 is perfect for wearers who value hearing protection. Featuring neodymium magnet structures, the QZ/5 delivers a frequency response of 40 to 20,000 Hz for outstanding clarity and definition. Oxygen-free copper voice coils enhance signal transmission. The high sensitivity of this stereophone allows it to be driven from any portable sound source or radio-frequency scanner.
Equipped with a 3-foot coiled cord that extends up to 8 feet, the QZ/5 features a 3.5-millimeter L plug to connect to any sound source or radio scanner with a 3.5-millimeter headphone jack. A dual volume control on the ear cup provides for convenient level adjustment.
Important for racing and commercial use, a lightweight, low-profile nylon/Velcro headband allows for easy adjustment for fit and permits the wearer to wear a cap. The metal band behind the head holds the cups firmly in place for proper isolation.
The QZ/5 is covered under Koss's No-Questions-Asked lifetime warranty.
The most comfortable headphones I've ever owned.August 16, 2008 Headphones comfort is certainly very individual thing, so I am not claiming that they will fit everybody. I am wearing them for 8 hours in the office (I sit about 2 feet from window A/C unit the noise from which they block completely) and another couple of hours at home office (with noisy kids running around) every weekday. There are no other headphones I could stand for anything close to that duration and I've tried quite a few models over years (usually I start to feel uncomfortable in an hour or two). Sometimes I listen to music and they sounds great to me.
KossAugust 16, 2008 over rated and over priced, I purchased a set for my metal detector and discovered how poorly they performed, If I could have listened to them before I purchased them I would not have bought a pair, also they are very heavy and uncomfotable to wear, my $10 pair of headphones sound and wear alot better than these koss units but they do not have a volume control, koss used to make some pretty good stuff but this unit needs to be redesigned..
They don't fit on my head!August 4, 2008 I won't say anything about the sound quality, but the headphones don't fit on my head. My head size for hats is about 7 3/4's and while the headphone "technically" fit on my head they don't snuggly fit on my head to keep out noise. The bottom of the ear cuff is not flat against my head. Because of that reason, I had to return them and buy the model that has the head adjustment on the top. I owned an old pair of KOSS speed zones and used them at several NASCAR races without issue. The sound quality is better than comparable racetrac models and even better than some of the more expensive headsets. I would encourage you to try this pair on before you buy or you'll end up screwed like me.
Outstanding bargain!April 18, 2008 I bought these for use with my race scanner at the April NASCAR race in Texas and they worked perfectly. The noise reduction is great and the strap headband makes them comfortable to wear all afternoon in the Texas sun. I would cetainly recommend these to anyone looking to purchase.
Great race scanner headphones at half the priceDecember 4, 2007 I purchased these for my race scanner and they function well. Pretty much the same quality as the much more expensive behind the ear headsets you see advertised on the scanner websites. The ear cushions are a little plasticky but easily remedied by replacing with gel covers ( same mod that youd have to make to headphones costing twice as much)
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