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Koss PortaPro Headphones with Case

by Koss
| 42 answered questions

List Price: $49.99
Price: $36.97 & FREE Shipping. Details
You Save: $13.02 (26%)
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Ships from and sold by Amazon.com. Gift-wrap available.
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  • Great frequency response, including deep bass performance
  • Comfort Zone setting lets you adjust temporal pad for a comfortable, secure fit
  • Collapsible for maximum portability when listening on the go
  • Multipivoting ear plates and adjustable headband for added comfort
  • Connector Type: 1 x Headphones (Mini-phone stereo 3.5 mm) , including convenient carrying case
44 new from $36.97

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Special Offers and Product Promotions

  • Amazon Free 30-Day Tech Support: This item is eligible for free tech support for 30 days from the date of delivery. Over the phone, our trained technicians can help you set up, configure, connect, and troubleshoot so you can start enjoying your new purchase. Owners of qualifying products can reach Tech Support by calling 1-800-362-5703. Learn more

Frequently Bought Together

Koss PortaPro Headphones with Case + Koss PORTABLE Replacement Cushions + Koss KSC75 Portable Stereophone Headphones
Price for all three: $55.74

Buy the selected items together

Product Specifications

Brand NameKoss
Color NameBlack, Silver
Output Channels2

Technical Details

  • Noise-Cancelling-Feature

Product Details

  • Product Dimensions: 6.8 x 2 x 8.9 inches ; 6.4 ounces
  • Shipping Weight: 1 pounds (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B00001P4ZH
  • Item model number: 155491
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (2,015 customer reviews)
  • Date first available at Amazon.com: May 14, 2003

Product Description


Koss introduced the PortaPro headphone back in 1984, and they've been a hit ever since. To this day, they still deliver excellent sound quality, particularly for phones in this price range.

Koss Porta Pro collapsed
Phones are collapsible, for maximum portability.
Koss Porta Pro
Get just the right amount of pressure.

The Koss PortaPro collapsible stereophone combines high-quality sound reproduction with a unique design for the ultimate in convenience and comfort. These over-the-head headphones have a dynamic element design for deep bass performance and a frequency response of 15 to 25,000 Hz to ensure the music comes through clear and bright.

Also designed for comfort, these headphones have two adjustable temporal-comfort zone pads to shift the pressure and perfectly balance the ear plates on your ear. The open-earphone ear plates are multipivoting and, together with the adjustable headband, allow for maximum comfort.

The PortaPros are collapsible and come with a carrying case, so it's still easy to take them with you even when you're not wearing them.

Koss offers a lifetime warranty on its PortaPro stereophones.

  • Frequency Response: 15-25,000 Hz
  • Impedance: 60 ohms
  • Sensitivity: 101 dB SPL
  • Cord: Straight, Dual Entry, 4 feet
What's in the Box
Koss Porta Pro Headphones

Product Description

Dynamic element design for deep bass performance; Comfort zone setting on temporal pad for comfortable, secure fit; Multi-pivoting earplates and adjustable headband for added comfort; Collapsible for maximum portability when listening on the go; Includes convenient carrying case; Straight, dual entry 4 foot cord; Frequency response: 15-25,000 Hz.

Customer Questions & Answers

Customer Reviews

The best lightweight headphones money can buy.
Tony Mirabella
There is no pressure points, they are light on the head and ears, very adjustable to head size and comfortable to wear for long periods of time.
John Chalmers
Good bass and very clear sound in the mid and high ranges.
C. Smith

Most Helpful Customer Reviews

644 of 665 people found the following review helpful By Peth on October 16, 2005
I couldn't decide between the Sennhauser PX100 and the Koss Portapro headphones. I bought both, so I could take them home and compare at my leisure. Result: They are both excellent choices! You will be pleased with either. But to distinguish between them:

The PX100 are more comfortable because of the foam cushions which rest on the top of your head. The Portapro are also comfortable, but I do notice the metal band on the top of my head, which sometimes pulls some strands of hair out.

The PX100 look better when on. The Portapro look kinda dorky -- especially at first -- but they are easy to get used to.

The PX100 are also more durable. Once you get the hang of it, it's quite easy to collapse the headphones and put them in their plastic carrying case. They are not going to get squished while they're in that! The Portapro can be collapsed into a ball, but if I'm not really careful, they spring open all when I touch them. It's also very difficult to get the Portapro headphones and cord into the accompanying bag.

The Portapro headphones have more bass, and to my ears, the music sounds more alive than with the PX100. The PX100 sound really good, but the Portapro sound just a tad bit better.

The Portapro feel more comfortable when under a wool hat (important for my winter walks with the dog).

Both leak sound -- there's no difference there. If that's a huge concern for you, then you might want a closed system for your headphones.

In the end, I couldn't which I liked better and kept both, rationalizing that my husband needs a pair of headphones too. Both are used regularly, although I take only the PX100 when I travel because I think it'd be much easy to accidentally break the Portapro.
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193 of 205 people found the following review helpful By Michael Maffie on December 5, 1999
I'm always on the lookout for the best sounding portable phones, and these are the best I've found yet. They have the smoothest, wide-range sound I've heard from any portable headset. I'd expected that in the 13 years since I bout them, that someone would have come up with something better. However, I've yet to find anything that comes close.
These phones may sound a little bass-heavy to some, but this unit has temple-pads that lift the elements away from your ears. This not only improves comfort, but also attenuates the bass, leading to a nice mix of comfort and sound quality.
Also, since I tend to be a bit rough on phones, the lifetime warranty has come in handy a few times.
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175 of 190 people found the following review helpful By Elderbear VINE VOICE on May 13, 2001
I've worn out two pair of these phones in the last decade. The sound quality was great. Wonderful bass--the only phones with better have been phones that fully cover my ears--and aren't really "portable." These stayed comfortable for the excruciatingly long flights from SoCal to northern Norway, even while wearing glasses. They fold up nice and small, easy to tuck away. They also performed adequately while watching airline movies ... more than saved the price of the phones over several trips!
I have two complaints: 1) hair easily penetrates the "speaker grill" and makes irritating noise against the actual speaker membrane. 2) The speaker, while reproducing sound well, can develop tears in the membrane easily. BE CAREFUL! Nothing is more annoying than a buzzing speaker at 33,000 feet (well, perhaps sudden cabin depressurization ...)!
My second pair wore out about the same time as my vintage walkman. I replaced the setup with a Nomad II MG & a pair of noise cancelling headphones--they make a _huge_ difference!
Five stars for sound quality. Five stars for comfort. Five stars for portability. Five stars for durability. If you're not going to spring for noise cancellation and you need a folding pair of phones, then get a pair of PortaPros.
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92 of 104 people found the following review helpful By Andre M. Behrens on January 17, 2005
The first thing that needs to be said about these headphones is that they are really ugly. There can be no denying it. The weird earpieces with the bar atop is just ugly, ugly, ugly. That said, these are easily the most comfortable portables I've worn, a situation largely a product of the very features that make the set ugly. Additionally, the sound is good. I don't feel the sound is as orgasmically supreme as other reviewers suggest, but the sound is very good. If you listen to a lot of Jazz or classical, some senns might serve you better. If you listen to more rock and hip hop, you'll be pleased with the portapros, if only for the comfort, which is truly exceptional. I use them with my iPod, and am well pleased.
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23 of 23 people found the following review helpful By B. Lee on March 28, 2008
Verified Purchase
... but great headphones, period, for any application. These are my favorite headphones - that's not to say they're the most detailed, accurate, or will fool you into thinking they're a set of Stax or anything (they are, of course, astonishingly accurate and detailed). No other headphones combine this level of comfort, soundstage, openness, and plain excitement into such a compact, durable, and CHEAP package. These are tiny tiny tiny, but rock out with authority.

There's been a lot of jibber jabber on these fair internets about the newest contender for the portable headphone crown - the Sennheiser PX100. I bought a pair of those Senns and lived with them for a couple of months - they are acceptable for a set of portable cans, I guess, but tend to get very congested and cluttered in the midrange. They're also bland and cold. Beyond sound, they're not even as comfortable as the PortaPros, as they require constant adjustment to stay on top of your head while you're walking around. Finally, the Senns are not only less durable than the PortaPros, but the warranty is only two years vs. Koss's incredible NO QUESTIONS ASKED LIFETIME WARRANTY. That's right, you never have to buy a set of headphones again, until you die. Just incredible. If you want to demo this sound t a lower price, try out the Koss KSC 75 ear clip model, but be warned they're nowhere near as comfortable. Buy with confidence.
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