Koss UR40 Lightweight Over-Ear Stereo Headphones for iPod, iPhone, MP3 and Smartphone – Silver

Price: £49.99 - £37.38
(as of Aug 06, 2025 15:22:13 UTC – Details)

From the manufacturer

About us

In 1958, John C. Koss teamed up with engineer Martin Lange, Jr. to develop a portable stereo phonograph player with side-wing speakers. The pair demonstrated their new stereo record player at a Wisconsin audio show. One of the product’s unique features was a privacy switch, which allowed listeners to hear music by plugging in the SP/3 stereo phone. The stereo phones were intended to be an accessory to demonstrate the high-fidelity stereo sound that the portable phonograph player delivered. A detachable cord system that gives listeners the freedom and flexibility to connect to virtually any device they own now, or in the future.

UR40 Lightweight Over-Ear Stereo Headphones

Heavyweight sound intensity teams with an ultra-lightweight design to create the ultimate in on-the-go listening, the Koss UR40. With improved signal transmission and conduction for a clean and clear sound, these headphones will minimize mechanical distortion and ensure exceedingly accurate sound reproduction.

Is discontinued by manufacturer ‏ : ‎ No
Language ‏ : ‎ English, French
Product Dimensions ‏ : ‎ 27.94 x 19.69 x 10.16 cm; 185.51 g
Date First Available ‏ : ‎ 1 Jan. 2006
Manufacturer ‏ : ‎ Koss
ASIN ‏ : ‎ B00006JILE
Item model number ‏ : ‎ 155524
Guaranteed software updates until ‏ : ‎ unknown
Best Sellers Rank: 12,244 in In-Ear Headphones
Customer reviews: 4.2 4.2 out of 5 stars 752 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Frequency Response – 10-20,000 Hz and Impedance – 60 ohms
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
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