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Koss PortaPro Headphones with Case

4.5 out of 5 stars 3,112 customer reviews
| 84 answered questions

List Price: $49.99
Price: $35.99 & FREE Shipping on orders over $49. Details
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  • Designed for deep bass performance
  • Comfortable, secure fit with adjustable headband and multi-pivoting earplates
  • Two adjustable temporal-comfort zone pads shift the pressure and perfectly balance the ear plates on your ear
  • Collapsible for maximum portability, includes carrying case
  • Connector Type: 1 x Headphones (mini-phone stereo 3.5 mm)
76 new from $35.99 6 used from $30.59
$35.99 & FREE Shipping on orders over $49. Details In Stock. Ships from and sold by Amazon.com. Gift-wrap available.

Frequently Bought Together

  • Koss PortaPro Headphones with Case
  • +
  • Koss Portable Replacement Cushions
  • +
  • HIeGI Koss Portapro PP Headphone Carrying Case/Bag
Total price: $48.44
Buy the selected items together

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Technical Details

  • foldable
  • lightweight

Compare to Similar Items

This item: Koss PortaPro Headphones with Case
Customer Rating 4 out of 5 stars (3112) 4 out of 5 stars (2234) 4 out of 5 stars (173) 4 out of 5 stars (568)
Price $35.99 $15.37 $44.99 $46.30
Shipping FREE Shipping FREE Shipping FREE Shipping FREE Shipping
Sold By Amazon.com Amazon.com Amazon.com Amazon.com
Color Black, Silver White/Gray Multicolor Black
Fit On-Ear On-Ear On-Ear On-Ear
Headphones Form Factor closed-back closed-back closed-back Information not provided
Dimensions 8.94 inches x 6.81 inches x 2 inches 6.5 inches x 6.5 inches x 2.5 inches 5.69 inches x 7.25 inches x 2.38 inches 0 inches x 0 inches x 0 inches
Item Weight 0.4 pounds 0.2 pounds 0.4 pounds 0 pounds
Special Features foldable Sports-Style ios-phone-control Noise-Cancelling-Feature
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Product Description

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.


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 Information

Product Dimensions 6.8 x 2 x 8.9 inches
Item Weight 6.4 ounces
Shipping Weight 6.4 ounces (View shipping rates and policies)
Manufacturer Koss
Item model number 155491
National Stock Number 5965-01-595-1942
Customer Reviews
4.5 out of 5 stars 3,112 customer reviews

4.5 out of 5 stars
Best Sellers Rank #23 in Electronics > Headphones > On-Ear Headphones
#539 in Electronics > Home Audio & Theater
#764 in Electronics > Portable Audio & Video > MP3 & MP4 Players & Accessories > MP3 & MP4 Player Accessories
Date first available at Amazon.com May 14, 2003

Technical Specification

Warranty [pdf ]

Warranty & Support

Product Warranty: For warranty information about this product, please click here [PDF ]


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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

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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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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Verified Purchase
Take what other reviewers have said about these headphones, believe them, and then multiply it by 100. I received a pair of Koss UR-20s as a gift years ago and loved them so naturally I looked to Koss again when replacing my portable/on-the-go headphones. After buying a pair of KSC-55s, which sounded great but were uncomfortable for me personally, I hopped on Amazon and found everyone raving about the PortaPros. I figured they were good, especially considering that the design seems unchanged since the 1980s (which has to mean something), but I also figured that this was one of those things that was just too good to be true. However, these are bar-none the most amazing headphones I have ever put on my head. Listening to some of my favorite songs for the first time was one of those 'wow' moments where you realize you have found something that changes your expectations completely. The bar will be raised the instant you hear the bass response and incredible acoustic qualities of these light, comfortable headphones.
I don't know what I'm impressed with the most: the amazing bass, the excellent stereo division, or how loud they can get! These things are just as amazing as most of the reviews show them to be and then a lot more... I was worried about the eighties styling, but in person they don't look bad at all. I hate headphones that scream for attention, but these don't look like that when you have them on and I have already been wearing them in public (something I didn't think I would do after only seeing the picture of them online). And even if they're a bit outdated in appearance, the design is so functional you won't even give looks a second thought after you put them on.
One thing is for sure: these things have plenty of bass!
Read more ›
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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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