Koss “The Plug” Portable Headphones (colors vary) Sale
Unique earbud design directs sound into the ear canal for deep bass and extended frequency performance. Specialty ear cushion material forms slowly in the ear canal to provide a custom fit and maximum isolation. Straight, dual entry 4 foot cord. Frequency Response: 10-20,000Hz.


Koss “The Plug” Portable Headphones (colors vary) Description
- 16 to 23,000 Hz frequency response
- Deep bass performance
- 4-foot cord
Koss’s miniature portable earphone, affectionately dubbed “The Plug,” makes use of an ear-cushion material (similar to that used in sound-blocking earplugs) that slowly expands in your ear canal to provide a custom fit and maximum sonic isolation from external noises. A detachable, extrawide headband makes these Koss-termed “stereophones” easy to carry or store.
For accurate sound reproduction, these earbud-style headphones are made with oxygen-free copper voice coils and neodymium iron boron magnets. You can enjoy them with either a portable or home audio device, since both 0.125-inch and 0.25-inch adapter jacks are included.
“The Plug” weighs a mere quarter ounce and has a frequency response rated at an impressive 16 to 23,000 Hz (though its unlikely you’ll hear bass output anywhere close to what you’d get from a similarly rated loudspeaker!).
Impedance is 16 ohms, with less than a 0.3 percent distortion and reasonably high sensitivity of 112 dB SPL/1 mW.
Koss “The Plug” Portable Headphones (colors vary) Review
Koss SPARKPLUG – Stereo In Ear Ear Plugs
What I don’t see in the dozen or so reviews, I have browsed is the quick-and-dirty insertion technique. I overcome that trouble by pinching the foam and putting it my mouth, give it a quick suck, then stick it in the ear, the added lubrication makes it a breeze to get a good fit (once the squeamish get past the ewww factor).
They are the best ear bud value on the planet, their ability to isolate sound allows you to play music and podcasts very low.
I have had a recent string of bad luck with the cord shorting out at the plug, after a month of daily use and storage in my jacket pocket, one, channel will cut out intermittently then permanently, followed a day later by the other channel. I have had this problem with 2 pairs purchased from koss directly, and 1 of 3 purchased from amazon this year. I now am careful to unplug the cord from the mp3 player when i am not listening to it, and try to put it on the seat of the truck so the cord doesn’t move around much at the base. So, far, so good.
Another great reason to have these phones is that they isolate the noise from a diesel engine, if you drive a large commercial truck, and all the related clunking in the cab that comes along with that. In the cab, one has to compensate for the ambient noise by turning the radio up louder. Not smart. Make sure you watch out for cops. Not legal to do that anywhere I’ve been.
Works well for hearing people on my Droid phone. You can buy Cheap Koss “The Plug” Portable Headphones (colors vary) and read more reviews by click on link below.
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