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Koss QZ-99 Noise Reduction Stereophone, Standard Packaging,Black
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Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
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Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Brand | Koss |
Model Name | Noise-Cancelling-Feature |
Color | Black |
Form Factor | Over Ear |
Connectivity Technology | Wired |
About this item
- Passive Noise Reduction Headphones.Connectivity Technology: Wired
- Neodymium Magnet Structures Deliver Outstanding Clarity & Definition
- Closed Pneumalite(Tm) Ear Cushions & Extra Secure Headband Seal Ears, Eliminate All Ambient Noise
- Volume Control On Ear Cup Allows Easy Level Adjustment
- Stereo/Mono Switch Extends User Flexibility
- Passive noise reduction stereophone system isolates listener from ambient sounds
- Volume control on earcup for easy level adjustment
- Ideal for use with racing scanners and metal detectors
- Stereo/mono switch for added flexibility
- Single-entry, 8-foot coiled cord
Additional Details
Frequently bought together
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Important information
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Warranty does not cover misuse of product.
Compare with similar items
This Item Koss QZ-99 Noise Reduction Stereophone, Standard Packaging,Black | Recommendations | dummy | dummy | dummy | dummy | |
Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | |
Price | -13% $51.99$51.99 List: $59.99 | -10% $314.10$314.10 List: $349.00 | -20% $39.99$39.99 List: $49.99 | -20% $40.10$40.10 List: $49.99 | -13% $32.99$32.99 List: $37.99 | $69.99$69.99 |
Delivery | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 | Get it as soon as Tuesday, Apr 2 |
Customer Ratings | ||||||
Noise cancellation | 4.2 | 4.5 | 3.0 | 3.0 | 4.0 | 4.1 |
Sound quality | 3.9 | 4.4 | 4.6 | 4.6 | 4.4 | 4.4 |
Bass quality | 3.6 | — | 4.6 | 4.6 | 4.3 | — |
Volume control | — | 4.6 | 4.0 | 4.0 | 4.2 | — |
Quality of material | — | — | 4.1 | 4.1 | 4.2 | 4.6 |
Sold By | Amazon.com | RuggedRadios | Koss Stereophones | Amazon.com | OneOdio USA | Koss Stereophones |
connectivity tech | Wired | Wired | Wired | Wired | Wired | Wired |
headphones form factor | Over Ear | On Ear | On Ear | On Ear | Over Ear | Over Ear |
connector type | Headphone Jack | 3.5mm Jack | 3.5mm Jack | connector type | plug in | Wired |
noise control | sound isolation | — | — | — | sound isolation | sound isolation |
headphones jack | — | 3.5 mm Jack | 3.5 mm Jack | 3.5 mm Jack | 3.5mm/6.35mm | 6.35 mm Jack |
cable feature | Retractable | Retractable | The ultra portable on-ear headphones Comfort Zone setting on temporal pad for comfortable secure fit The ultimate active headphones with a collapsible headband design for protective storage Dynamic element for extended frequency response Oxygen-free copper voice coils deliver deep bass and signal clarity Includes a convenient carrying case for protective storage Limited Lifetime Warranty | Retractable | Retractable | Noise isolating professional studio headphones The first dynamic headphones to deliver true full frequency, high fidelity performance Standard-setting design incorporates performance-enhancing technology Superior isolation, accurate sound reproduction and the excitement of a live performance with every recording Durable steel and generously padded rubber headband Adjustable slide bars ensure snug fit 8 foot coiled cord with 6.3 mm (1/4") plug Covered under the Koss Stereophones Limited Lifetime Warranty |
What's in the box
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Product information
Product Dimensions | 8.63 x 4.13 x 8.38 inches |
---|---|
Item Weight | 15 ounces |
Department | Patio, Lawn & Garden |
Manufacturer | Koss |
ASIN | B000051SD1 |
Country of Origin | China |
Item model number | QZ99 |
Customer Reviews |
4.2 out of 5 stars |
Best Sellers Rank | #27,097 in Electronics (See Top 100 in Electronics) #1,055 in Over-Ear Headphones |
Is Discontinued By Manufacturer | Yes |
Date First Available | September 4, 1973 |
Item Weight | 425 Grams |
Units | 1.0 Count |
Number Of Items | 1 |
Warranty & Support
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Product Description
Product Description
Product Description The QZ99 Passive Noise-Reducing Over-Ear Headphones from KOSS are designed to make the world disappear. Pneumalite(TM) ear cushions and an extra-secure headband help with passive sound isolation, allowing for listening without outside noise. A volume control is located on the ear cup for maximum ease of use.The Koss QZ99 headset is a passive noise-reduction stereophone system that isolates the listener from ambient sounds, allowing clear and focused listening of the intended aural signal. Ideal for use with racing scanners and metal detectors, it includes a volume control on the earcup for easy level adjustment, a stereo/mono switch for added flexibility, and a single entry, 8 foot coiled cord. From the Manufacturer 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. Features Frequency Response: 40-20,000 Hz Passive Noise Reduction stereophone system isolates listener from ambient sounds Ideal for use with racing scanners and metal detectors Volume control on ear cup for easy level adjustment Stereo/Mono switch for added flexibility Single entry, 8 foot coiled cord The Koss QZ99 headset is a passive noise-reduction stereophone system that isolates the listener from ambient sounds, allowing clear and focused listening of the intended aural signal. Ideal for use with racing scanners and metal detectors, it includes a volume control on the earcup for easy level adjustment, a stereo/mono switch for added flexibility, and a single entry, 8 foot coiled cord.
Amazon.com
The Koss QZ99 headset is a passive noise-reduction stereophone system that isolates the listener from ambient sounds, allowing clear and focused listening of the intended aural signal. Ideal for use with racing scanners and metal detectors, it includes a volume control on the earcup for easy level adjustment, a stereo/mono switch for added flexibility, and a single entry, 8 foot coiled cord.
From the Manufacturer
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.
Features
- Frequency Response: 40-20,000 Hz
- Passive Noise Reduction stereophone system isolates listener from ambient sounds
- Ideal for use with racing scanners and metal detectors
- Volume control on ear cup for easy level adjustment
- Stereo/Mono switch for added flexibility
- Single entry, 8 foot coiled cord
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the sound quality, performance and value of the headphones. For example, they mention that they attenuate ambient sounds well, provide acoustic isolation and that they work well. Some appreciate the volume control. That said, some complain about the weight and fit. Opinions are mixed on comfort and construction.
AI-generated from the text of customer reviews
Customers like the sound quality of the headphones. They say it has great sound, they attenuate ambient sounds well, and provides superb noise cancelling. Some customers also say the sound is good for the price and the acoustic isolation is equal to that provided by other high-end models. Overall, customers are satisfied with the performance and recommend the product to others.
"...All these complaints, I still give them 5 stars because they block out the sound, have local volume control (that knob on the side) and sound decent...." Read more
"Worked very well with scanner at NASCAR event. Blocked external noise and delivered clear sound from the scanner." Read more
"...All they said, the sound quality for the price is unbeatable. Sure there is little bass but these headphones are not meant for bassheads...." Read more
"...Pros:- Great sound. Both volume and sound quality.- Noise reduction is GREAT on these.- Very snug fit. (see cons also)-..." Read more
Customers are mixed about the comfort of the headphones. Some mention that they fit snugly and do not hurt to wear for long periods of time. However, others say that they are the most uncomfortable headphones they've ever worn and that the vinyl covering does not feel nice.
"...They are also decently comfortable with one ear on and the other ear against the side of your forehead or wherever so you can hear the world while..." Read more
"...Noise reduction is GREAT on these.- Very snug fit. (see cons also)- Seems to be very solidly constructed.Cons:-..." Read more
"...to the Vic Firth isolation headphones I have—which are the most uncomfortable headphones I've ever worn and, based on my experience and many reviews..." Read more
"...The headphones are decently comfortable because they fit snugly around the ear, rather than sitting on top of the ear and squishing all of your ear..." Read more
Customers like the performance of the headphones. They say that they work well, do the trick, and are impressed with their performance. They also say that the speakers inside work great and that they never had any issues with them. Some mention that the headphones are great for radio work and in a busy area.
"Worked very well with scanner at NASCAR event. Blocked external noise and delivered clear sound from the scanner." Read more
"...It does a pretty good job at canceling out the sound of crying children or that annoying person staying with you indefinitely...." Read more
"...They work really great with my metronome too...." Read more
"...But great for doing radio work, or in a busy area.Issues I am having after 8 years. The volume knob is touchy and shorting out...." Read more
Customers are satisfied with the value of the headphones. They mention that it provides excellent value for money, with great quality and decently priced noise-blocking headphones. Some customers also mention that the volume and bass are great for the price.
"very good headphones with decent sound quality for the price and amazing noise cancelling too but main flaw is the mono/sterero switch which started..." Read more
"...He was also stunned at the quality for the price...." Read more
"...much better sound reproduction than you'd expect, and want excellent value for money, these are for you!..." Read more
"...Overall this is not a bad product for the price and at least I can hear my music without turning the volume way up." Read more
Customers like the volume control of the headphones. They say the individual volume control is nice, and the built-in adjustable volume is good. They also mention that the headphones are tuned for the mids, which makes listening to vocal audio levels easy and crisp.
"...I still give them 5 stars because they block out the sound, have local volume control (that knob on the side) and sound decent...." Read more
"like everything about headphones. love the volume control on the headset." Read more
"...I also use them for music and watching movies. They have a built-in volume switch, and can be switched from mono to stereo with a built-in line..." Read more
"...PROS: The equalization is pretty flat, so it makes listening to vocal audio levels pretty easy and crisp...." Read more
Customers are mixed about the construction of the headphones. Some mention that it's very solidly constructed, while others say that the earpiece seems to always break off.
"...Very snug fit. (see cons also)- Seems to be very solidly constructed.Cons:- A little too snug...." Read more
"...bass, I expected that, what I didn't expect was the poor reproduction across the whole spectrum...." Read more
"...all you're listening to on them is podcasts they might actually be a well-made, comfortable pair of isolation headphones for your application...." Read more
"...The wires are solid.. the connections are solid.. I believe this intermittant left ear connection is in the variable resistor itself.. not in a..." Read more
Customers are dissatisfied with the weight of the headphones. They mention that they are a little bit heavy, bulky, and not light.
"...Also, posture and neck angle make a difference, because the top is so heavy...." Read more
"...They are very difficult to adjust the head strap size, they are bulky and have metal clamps on the side where you may even scratch yourself with them..." Read more
"...I love the way the look and feel, the weight of them and the comfort factor. I have only a few complaints...." Read more
"...the implied ruggedness of the QZ-99s. My critique: The headphones are heavy and uncomfortable on the head even for short periods...." Read more
Customers have negative opinions about the fit of the headphones. They say that they are a little too snug and cause irritation. They also say that the headphones are clunky and huge, and they squeeze your head way too tightly. Some customers also mention that the head strap size is difficult to adjust. Overall, customers are not happy with the fit and recommend avoiding these headphones.
"These are far from perfect. They are very difficult to adjust the head strap size, they are bulky and have metal clamps on the side where you may..." Read more
"...Seems to be very solidly constructed.Cons:- A little too snug. Wearing them the way I do, causes irritation...." Read more
"...He says they are kind of tight on his head and I do notice lately he hasn't been using them as often to listen to his shows on the computer...." Read more
"...These are not comfortable, plus they are tight against the side of your head to the point of distorting my eyeglasses...." Read more
Reviews with images
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Top reviews
Top reviews from the United States
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As an engineer, I can be in the live room with a guitarist while he plays loudly and still monitor the other tracks along with him, so it's great for that.
pressure is pretty intense, if you're already having a headache, don't use them that day. Also, posture and neck angle make a difference, because the top is so heavy.
They feel like they will last a good 10 years, but the strain relief where the cable meets the left phone, that is where the problem is going to be. Also the coiled cable doesn't stretch as easily as you might want it to. It pulls hard enough to unplug them, so get an extension cable.
All these complaints, I still give them 5 stars because they block out the sound, have local volume control (that knob on the side) and sound decent. You could use them with a metal detector, operating a radio, etc etc. They are also decently comfortable with one ear on and the other ear against the side of your forehead or wherever so you can hear the world while using them if needed (DJ style, but I would not recommend them for DJs only because they do not look cool enough and the cans don't pivot all the way out. If they did, they would be pretty great for that).
All they said, the sound quality for the price is unbeatable. Sure there is little bass but these headphones are not meant for bassheads. If you have a DAC then you're going to absolutely love the hell out of these are it really brings to life these headphones.
The sound is very crisp and clean and very neutral, is that makes any sense. I really love these.
These have been pretty great. They do what they say they do, no doubt about that.
I use them with my computer, for music, movies/video and gaming.
They get plenty loud enough for me, and the sounds are clear.
My only real beef with these headphones, is that they are pretty snug fitting.
Good, in that it keeps them on your head while leaning over and whatnot, but bad in that it can be uncomfortable.
In my case, when I'm gaming and someone is in the room, I tend to only have the right headphone over my ear, and place the left one behind my left ear (so I can hear when people talk to me). This makes my right ear sore after a while (on the intertragic notch). I've tried different angles (the headphones pivot a little) and extending the length, but no use.
If I'm wearing both headphones on my ears (admittedly, as intended), then it doesn't bother me at all.
I only bring this up, because I've always worn headphones with one side behind the ear, and have never had this happen.
But then, all the headphones I've ever owned, have all been pretty loose fitting.
Pros:
- Great sound. Both volume and sound quality.
- Noise reduction is GREAT on these.
- Very snug fit. (see cons also)
- Seems to be very solidly constructed.
Cons:
- A little too snug. Wearing them the way I do, causes irritation.
- The cord could be a little longer. It's a good length, but a little longer would have been nice.
So they sound bad and they don't really block out sound... Even though I'm a fan of Koss in general (I've had two pairs of KSC75s, one of which I thought I had lost but actually turned out to have fallen out of my car, sat outside on the ground for days, and when I eventually found them, STILL WORKED), I cannot recommend these for e-drummers or anyone else who has any interest in even a basic level of audio fidelity. I can't comment on how well they work to block out the sound of engines or machines, maybe they're good at that, and if all you're listening to on them is podcasts they might actually be a well-made, comfortable pair of isolation headphones for your application. For me, however, they just didn't pass muster.
Top reviews from other countries
For those who wants to use it as a music headphones, first - check if your player device will be able to handle its 60 homs, if your devise has no equalizer probably you not gonna be happy ;-) My mac plays great, no issues at all. I never go over 60-70% of the volume level. Everything that KOSS published at an official web-page meets with what i've got. So, i would recommend it, but only if you know how to use it.
a.) einen stabilen Kopfhörer braucht und der
b.) wenn möglich, die Umgebungsgeräusche so gut wie möglich dämpft.
Beides erfüllt der QZ-99 von Koss optimal.
Zur beachtung: der QZ-99 ist ein 'heavy-duty' Modell. Für kleine
MP3 Player zwar durchaus technisch anschliessbar, der Einsatz ist
aber eher für andere Situationen gedacht.