Product Description

A portable headphone is a headphone that is used on-the-go. Portable headphones tend to be smaller, more lightweight, and may have features that lend themselves to listening on-the-go, like carrying cases or collapsible headbands.

Product Details

• Brand: Koss
• Model: 155524
• Original language: English
• Dimensions: 8.00" h x 9.00" w x 4.00" l, 1.67 pounds

Features

• Wide, 15 to 22,000 Hz frequency response
• Titanium-coated, high-polymer diaphragms deliver accurate sound
• Neodymium iron boron rare-earth-magnet structures for accurate sound reproduction
• Oxygen-free-copper voice coils for high signal clarity
• Closed leatherette ear cushions for maximum isolation and deep bass

Amazon.com Product Description
Home and portable audio take on fresh life with quality headphones, and Koss's lightweight, closed-ear UR40 is designed to keep outside noises out and headphone sound in--perfect for use in busses and libraries alike. With its extended frequency range of 15 to 22,000 Hz, you'll never miss a single bass note or want for high-frequency splash or shimmer.

The UR40's titanium driver elements ensure taut low end and clear treble, while its collapsible headband design further lends it to portable applications and protects the headphone when not in use. The headphone comes with a four-foot, dual-entry cord and a .25-inch stereo adapter for use with hi-fi components.

What's in the Box
Headphones, adapter plug, user's manual, warranty information.

From the Manufacturer
A home headphone is a headphone that is primarily used in the home, with home electronics. Generally speaking, home headphones are somewhat larger and more isolating. Home headphones with cords tend to have a longer cord.

Features:

• Frequency response: 15-22,000 Hz
• Titanium element for impressive bass and treble clarity
• Closed ear cushions for deep bass and maximum isolation
• Collapsible headband design for portability and protective storage
• Straight, dual-entry, 4-foot cord
• 3.5 mm plug

Customer Reviews

Not bad at all, for folding affordable headphones.
Somehow, just about any set of headphones can get close to a 5 star rating on here, even if they have 15mm earbud drivers that can't play the any bass below about 150 hz. Most mainstream consumer headphones make outrageous claims in the specs, but sound awful and bottom out trying to reproduce anything close to source material.

These Koss phones aren't audiophile quality, and the treble is a little bit muddy, but they're by no means harsh like most cheap headphones, and you hear just about everything in your music. Plus, they're pretty efficient...plenty of volume, even on portables that usually strain to produce audible music in loud settings like an airplane. Bass response is great, and I haven't been able to make the drivers clip, even during pretty loud listening. If you care what your music sounds like, it's almost impossible to find headphones worth hearing that aren't oversized and a little ridiculous looking, as these Koss are. But hey, if you're into image, buy some street style nightmares and listen to popular music that isn't worth hearing anyways.

These Kosses are definitely recommended, espcially since they're relatively portable for the size (being foldable), and they more than hold their own against anything in their price range in the present market. For about $20 more you can get some nice Grado SR60s that are remarkably true to your music, but they don't really travel well, and you can't wear them in anything but totally stationary settings thanks to their oldest-school design. And they don't quite bump like these budget Koss UR40 do. Plus, Koss makes it really easy to take advantage of their lifetime warranty, which I have done twice with other models. And if you buy them, post a review, since the other two reviews on here so far are suspiciously duplicate plant-sounding salespitch-type reviews. Enjoy.

Close to perfect, at least for me
I bought a pair of these in 2004 to use primarily with my laptop. I'm not a huge audiophile, but I do expect much better sound than built-in computer speakers can deliver, and as I sometimes spend 12+ hours working at my computer, I needed something that wasn't going to be torture on my ears/head. I have a very small head, so I wanted the self-adjusting strap to keep them snug and comfy, and of course the fact they're collapsible makes them easier to transport.

These headphones have more than lived up to my expectatoins, and I'd buy them again in a heartbeat, but I do have a couple of warnings for those considering buying them. One is the short cord (4 feet), which works pretty well as long as you're not interested in moving around too much, and your headphone jack is reasonably close. You're probably not going to be able to plug them into the back of a computer tower or watch TV with them without an extension. The other thing is that after about a year they started to look really shabby. The silver paint on the outside is scraping off, and the outer lining on the earpads has mostly torn away. They still work and wear fine, though, so as long as you don't care how they look it's not a huge problem.

Nice powerful cans, but lacking in quality
I bought these at BestBuy as a quick replacement after my Koss R200's broke. These are nice and powerful cans that really put out a lot of sound. I used them mainly for late nite DVD viewing. They are extremely comfortable even after several hours of continuous use. The folding design would make travel easier than a full size set.

Now, the negatives. The cord is fine for a portable or laptop, but way too short for home use. The mesh inner headband is connected to the outer headband by four small pieces of elastic. After one week of use two of those pieces of elastic have broken ( one on each side ). The two remaining pieces of elastic look dry and brittle. I can't imagine this not being a problem any UR40's after awhile.

I was going to give them another star for the sound quality. That is before my new pair of Sennheiser HD500's arrived today from Amazon. My test was simple. I fired up my Top Gun DVD on my iBook and listened to the intro ( you know the scene with the jets taking off and landing on the aircraft carrier ). WOW, what a difference. The sound crispness and separation on the Senn's is awesome for $50.

I still give the UR40's high marks for shear power and comfort, but I think this pair is going back to BestBuy while I enjoy burning in the HD500's.