This Earphone

J&R has the KOSS KEB/70 Aluminum Isolation Earbuds Earphones for $17.99 with free shipping.
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J&R has the KOSS KEB/70 Aluminum Isolation Earbuds Earphones for $18.99 with free shipping.
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J&R has the KOSS KSC22 SportClip Headphones - Silver for $16.99 with free shipping.
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Buy.com has the Koss PortaPro Portable Headphone for $33 with free shipping. a wide frequency response from 15-25,000 Hz and foam ear cushions for comfort.

Product description from Buy.com:

First introduced in 1984, this high quality portable stereophone set performance and comfort standards for personal listening worldwide. Over the years, much to the delight of devout Porta Pro enthusiasts, we?ve preserved the original design and performance that made the
Porta Pro a portable music icon. Today the Porta Pro remains the headphone of choice for the discriminating listener. Designed for those with refined musical acuity, the Porta Pro continues to be the most requested headphone at koss.com.

The Porta Pro features dynamic elements that deliver exceptionally rich, deep bass and a remarkably wide frequency response from 15-25,000 Hz to capture every nuance in your favorite movie or musical performance. Constructed from mylar, the elements are extremely rigid, minimizing mechanical distortion and ensuring exceedingly accurate sound reproduction. Neodymium iron boron rare earth magnet structures enable the Porta Pro to deliver greater volume so you can hear every note, even when competing against the sounds of a commuter train with a low-voltage MP3 or disc player. Oxygen free copper voice coils improve signal transmission and conduction for cleaner, clearer sound. Foam earcushions provide an open, hear-through sound that
lets you keep in touch with your surroundings. Perfect to w!
ear whil
e running, at work, or while traveling.

Whether you?re listening at home or on the go, the Porta Pro will bring the excitement of a live performance to any recording.

FeaturesEarpiece Design Over-the-headConnectivity Technology WiredManufacturer Koss CorporationWireless Technology Not ApplicableEarpiece Type BinauralManufacturer Part Number PORTA PRO 08Standard Warranty Lifetime LimitedManufacturer Website Address www.koss.comHost Interface Mini-phoneForm Factor Semi-openProduct Model PortaProProduct Name PortaPro Portable HeadphoneProduct Type Headphone

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Buy.com has the Koss QZ99 Technology Stereo Headphone for $40.24 with free shipping.

Product description from Buy.com:

New advances in materials and design have served to expand the performance of stereo phones. Koss Product Development team and engineers look for the most innovative combinations of existing and new technologies to deliver the most exciting products possible.

FeaturesEarpiece Design Over-the-headManufacturer Koss Corporatio
nConnectivity Technology WiredEarpiece Type BinauralManufacturer Part Number QZ99Standard Warranty Lifetime LimitedManufacturer Website Address www.koss.comHost Interface PhonoForm Factor Ear-cupWeight 15 ozProduct Name QZ-99 Technology Stereo HeadphoneProduct Type Headphone

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J&R has the Koss PortaPro Stereo Headphones for $29.99 with free shipping.
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J&R has the KOSS STEALTHW Stealth Ultra Lightweight Headphones - White for $4.99 with free shipping.
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Buy.com has the Koss Wireless Stereo Behind-the-neck Headphone for $39.74 with free shipping.

Product description from Buy.com:

The HB70 Infrared (line of sight) Stereophone system consists of a single channel wireless headphone and a compact infrared transmitter. Incorporating infrared technology, the HB70 is ideal for home audio, video and computer use. The transmitter connects to most home systems through a 3.5mm headphone jack or audio o
utput. Utilizing infrared (IR) technology, it transmits an invisible, infrared signal to the headphone which then reproduces the audio signal. Unlike conventional wireless systems the HB70 is relatively small and lightweight for extended listening periods. When a conventional headband is too cumbersome, the HB70 behind-the-head headphone provides maximum comfort during extended wearing periods while providing the same excellent sound of Koss.

FeaturesEarpiece Design Behind-the-neckConnectivity Technology WirelessPackage Contents

HB70 Infrared Headphone

Compact Infrared Transmitter

Manufacturer Koss CorporationWireless Technology InfraredStandard Warranty Lifetime LimitedManufacturer Part Number HB70 05Earpiece Type BinauralHost Interface Not ApplicablePlating Not ApplicableForm Factor Semi-openManufacturer Website Address www.koss.comWeight 4.5 ozProduct Model HB70Product Type Headphone

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6ave.com has the Koss Portable DVD Headphone Kit for $28.52 - 5% off entire order coupon code “AFL5″ = $27.09 with free shipping.

Product description from 6ave.com:

The Koss DVD Entertainment Kit includes a lightweight PTX6 portable stereo phone and an amplified portable equalizer to let you boost the volume and customize the bass, midrange and treble of your portable DVD player. A special y-adapter is included so you can share
your favorite DVD with a friend. PTX6 is equipped with dynamic elements for an extended frequency response of 80-20,000 Hz. Cord is 4 ft with a 3.5 mm L-shaped plug.

Portable Stereo phone
Koss electronics offer a portable stereo phone that delivers the full Sound of Koss. With great sound performance, it is ideal for listeners seeking ultra-light headphones that don’t interfere with their fashion sense.

Amplified portable equalizer
Equalization (EQ) filter is a filter, usually adjustable, chiefly meant to compensate for the unequal frequency response of some other signal processing circuit or system. An EQ filter typically allows the user to adjust one or more parameters that determine the overall shape of the filter’s transfer function. It is generally used to improve the fidelity of sound, to emphasize certain instruments, to remove undesired noises, or to create completely new and different sounds. Equalizers may be designed with peaking filters, sh
elving filters, band pass filters, plop filters or high-pass!
and low
-pass filters.

Y-Adapter
Y adapter cable attaches to your iPod or iPhone, so you can play your tunes on your home stereo or portable speakers quickly and easily. Just connect the 3.5mm, mini-stereo plug into your portable stereo device, and then connect the RCA plugs into the RCA jacks of your stereo component or portable speakers. And start enjoying your tunes.

Extended Frequency Response of 80-20,000 Hz
Frequency response is the measure of any system’s spectrum response at the output to a signal of varying frequency (but constant amplitude) at its input. In the audible range it is usually referred to in connection with electronic amplifiers, microphones and loudspeakers. Radio spectrum frequency response can refer to measurements of coaxial cables, category cables, video switchers and wireless communications devices. Subsonic frequency response measurements can include earthquakes and electroencephalography (brain waves).

Features included:

• PTX6 equipped with dynamic elements for extended frequency response of 80-20,000 HZ
• Over-the-head design/folds flat for easy storage
• Straight single-entry 4 ft cord, L-shaped 3.5 mm plug
• Portable equalizer increases volume, lets you customize bass, midrange & treble
• Y-adapter to share movies with a friend
• Product Dimensions: 1 pounds
• Shipping Weight: 1 pounds

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