In the year that George Orwell predicted the apocalyptic era of Big Brother, the dreaded unevent led to bigger and greater things. Among those great things was the first headphone designed for portable use. Before MP3 and before iPod, when people used cassette and CD players, Koss Portapro emerged as an answer to those seeking high quality sound for portable audio. The year was 1984. Over decades, this headphone remains a favorite.Koss Porta Pro headphones' high quality sound set sound performance and comfort standards for portable personal listening worldwide when first introduced in 1984. Since then, to the delight of devout Porta Pro enthusiasts, Koss has preserved the original design and performance that made the Porta Pro a portable music icon. Designed for those with refined musical... Less

Koss Cobalt Bluetooth HeadphonesCutting -edge Bluetooth technology enables hands-free, cord-free listeningBehind- the-head design for maximum comfortVolume control and mute switchUp to 8 hour of playback life with rechargeable embedded lithium-ion batteryCollapsibl e design for protective storageProvides a 30-foot range, you can move freely while taking a call, or listening to your favorite music or movies.The Cobalt package includes the stereophone, audio transmitter, USB audio dongle, USB charging cable, AC charging adapter, and audio extension cable.

Koss' classic portapro headphone was among the first headphones designed for portable use. Decades later, Koss introduces the IL-100 as a portable earphone to meet current mobile necessities. Koss Porta Pro KTC, the most sophisticated version of the Porta Pro, features a new technological upgrade which brings listeners closer to the music they love. Koss Touch Control (KTC) remote and microphone technology, made for iPhone, iPad and iPod, gives listeners more control in fewer steps. Listeners are now able to stay connected, shuffle song and adjust volume with the flick of a switch. Koss Porta Pro KTC features the standard setting sound performance the original Porta Pro established over 25 years ago. Designed for those with refined musical taste, the lightweight Koss Porta Pro KTC does... Less

The TD85 is a professional- quality headphone that delivers high-quality stereo sound in a durable yet lightweight construction.

Lightweight on ear stereophones that deliver deep bass and a wide frequenc response. Soft and comfortable ear cushions. RUK 40 Color Options To view RUK 40 (Color : Silver) - click here To view RUK 40 (Color : Blue) - click here Key features Lightweight Dynamic elements deliver deep bass and a wide frequency response Pivoting ear plates Ear cushions: Supra‐aural Pressure Sealed Vinyl Leatherette Specs Frequency response: 20-25,000 Hz Impedance: 36 ohms Sensitivity: 98 dB SPL Distortion:

Part#: 178097 Specs: Frequency response: 18-22,000 Hz Impedance: 36 ohms Sensitivity: 100.0 dB SPL Features: Sound: Studio quality Sound: Closed ear cups for vivid bass tones Structure: Padded sling with metal headband Structure: Swiveling ear cups Contents: Heaphones with lightweight ear foam Straight, dual entry 4 foot cord Warranty: Limited Lifetime Warranty Overall:Slipping into a set of lightweight, professional headphones like the Koss UR55 studio headphones is like listening to a live musical performance at a spacious outdoor venue. These high velocity headphones feature open-screen ear cups that deliver great sound, lasting comfort, and impressive air circulation. Designed to deliver equal parts sound quality and comfort, Koss UR55s bump with massive bass while their... Less

Koss Pro4AA headphones set the standard for full size professional headphones. They were introduced in 1970 as the first dynamic headphones to deliver true full frequency and high fidelity performance with impressive noise isolating capabilities. Retired in the late 80s, Koss swiftly returned the Pro4AA headphones to its product lineup due to overwhelming popular demand. They have since remained a staple of studio headphones in the radio and recording industries. Koss Pro4AAs meet the stringent demands of broadcast and recording professionals who require reliable equipment and superior performance. The full size professional headphones keep unwanted sounds out while letting every note in. Whether youre a sound professional or an audiophile, Pro4AAs deliver superior isolation, accurate... Less

Koss iSpark Stereo Earset - Wired Connectivity - Stereo - Earbud - BlackSpecificatio ns:Product Type: EarsetEarpiece Type: BinauralMinimum Frequency Response: 10 HzMaximum Frequency Response: 20 kHzColor: BlackConnectivity Technology: WiredBrand Name: KossForm Factor: OpenWireless Technology: Not ApplicableSound Mode: StereoHost Interface: Mini-phoneCable Length: 48"Product Type: EarsetEarpiece Design: EarbudEarpiece Type: BinauralMinimum Frequency Response: 10 HzMaximum Frequency Response: 20 kHzMicrophone Design: On-cableColor: BlackConnectivity Technology: WiredBrand Name: KossForm Factor: OpenManufacturer: Koss CorporationProduc t Name: iSpark Stereo EarsetWireless Technology: Not ApplicableSound Mode: StereoHost Interface: Mini-phoneCable Length: 48"Standard Warranty: Lifetime... Less

Koss Pro-3AA Stereo Headphones

The noise isolating ability of the Koss Mirage in-ear headphones make them an ideal option for music lovers who live at the gym. The custom comfort of silicone ear cushions (available in three sizes) and a variety of stylish colors (complementing the design of today?s MP3 players) all adds to your ability to take these in-ear headphones anywhere. From treadmills to airplanes, sidewalks to subways, the noise isolating Mirage in-ear headphones are no trick of the senses, but the perfect vehicle for the Sound of Koss. Key Features: Dynamic element positioned outside ear for extended frequency response Customized fit enhances isolation Includes small, medium and large silicone ear cushions Ear cushions eliminate unwanted ambient sounds Available in a wide variety of colors (blue, green,... Less