Price: $59.99 - $45.99
(as of Nov 28, 2024 01:28:08 UTC - Details)

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.
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
Reviewer: BEN VGA
Rating: 5.0 out of 5 stars
Title: Awesome headphones
Review: I should have bought (2) - fits firmly, noise reduction with volume knob on headphone - nice touch, cord stretches out, nice touch - get (2) if I was you.

Reviewer: N. Garnett
Rating: 5.0 out of 5 stars
Title: Great sound blocking headphones
Review: I love these. This is my second set to hook my mp3 player to when I mow the yard. Very comfortable and lightweight.

Reviewer: Traveler 6415
Rating: 5.0 out of 5 stars
Title: Heavy, flawed, eventually painful, but worth owning! Amazing for the price!!
Review: Heavy. For a drummer to wear for an 8 hour session, he needed breaks.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).

Reviewer: L. Winthorpe III
Rating: 4.0 out of 5 stars
Title: Very good at what they do.
Review: I was in the market for a new pair of noise-dampening headphones.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.

Reviewer: Arrowsmith47
Rating: 5.0 out of 5 stars
Title: Good sound reproduction. Good acoustic isolation. Good value for the price.
Review: My all time favorite headset was a Koss Pro4AA, which I bought in about 1972. I have been searching for a true replacement for a long time. I tried a Koss Pro4AA Titanium, and was greatly disappointed. Primarily because they have very poor acoustic isolation even though they are a sealed over the ear unit. I have also tried a vast number of wired and wireless earbud units. The best one I have found was a KLIPSCH R5 neckband unit, which also fails the isolation requirement. All this brings me to the Koss QZ-99.This unit reproduces the high end of the spectrum as well as any unit I have tried. My test playlist sounds the way it is supposed to sound in that range. If I has an equalizer on my iPad to pump up the bass for my preference I would rate this unit the equal of my Pro4AA in its prime. Why do I say that? This unit provides acoustic isolation equal to that provided by my deluxe shooting ear protectors. I can hear my music or my ball game, without nagging my wife to turn down her mystery on Hallmark, or her shopping spree on QVC.This unit is well constructed and well made, read that as heavy. They seem like they will be in it for the long haul. Yet they are well padded in the ear cushions and the headband. I like these headphones. I think you will also.

Reviewer: Thomas
Rating: 1.0 out of 5 stars
Title: Not for musicians
Review: Bought these for use with my electronic drums and unfortunately realized I would have to return them within 5 minutes of putting them on. Unfortunate because, compared 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 I've read, have design flaws and/or very poor build quality and will invariably develop a loose wire—these Kosses are very comfortable and well-designed. However, they sound like absolute garbage. We're taking cellphone speaker-esque tinniness. There is literally no bass, and I am not exaggerating. I don't have the equipment to prove this, but I'm fairly confident that there are no bass frequencies whatsoever being produced by the drivers in these headphones. And on top of that, the sound isolation is not much better than the Sony MDR-7506 I was using prior.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.

Reviewer: Ari I Campos
Rating: 5.0 out of 5 stars
Title:
Review: totalmente inmersivo, si necesitas estar pendiente de algun sonido exterior mejor usa ota cosa. Te sumerge y bloquea todos los sonidos exteriores. Aprietan un poco la cabeza, si eres muy sensible o cabezón busca otra opción.

Reviewer: CuisineC
Rating: 5.0 out of 5 stars
Title:
Review: Bonne qualité +++, très bonne isolation du bruit, portage long terme difficile à cause du poids

Reviewer: Prasanna Kakunje
Rating: 5.0 out of 5 stars
Title:
Review: Loved it

Reviewer: Amazon Customer
Rating: 5.0 out of 5 stars
Title:
Review: Got it for my metal detector, very nice quality of structure. I use it 4-6 hours in a row, a bit heavy, but i don't feel any pressure on my head or fatigue.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.

Reviewer: Wolfgang K. Meister
Rating: 5.0 out of 5 stars
Title:
Review: Im Amateurfunk gibt es Situationen, wo mana.) einen stabilen Kopfhörer braucht und derb.) 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 kleineMP3 Player zwar durchaus technisch anschliessbar, der Einsatz istaber eher für andere Situationen gedacht.