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$49.99
Get it as soon as Saturday, May 11
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From the brand
The Original American Stereophone Company
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In 1958 John C. Koss changed the way we all listen to music when he invented the world's first SP/3 stereophone.
Koss sought to replicate the excitement of a live musical performance, allowing listeners to experience sound as they had never before, bringing them closer to the music they love. Music lovers around the world recognize that dedication to accuracy in sound reproduction as: The Sound of Koss
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Birth of the Stereophone
Before the world's first SP/3 Stereophone in 1958, John C. Koss developed a portable stereo photograph player with side-wing speakers.
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World's First SP/3 Stereophone
in 1958 John C. Koss invented the world's first SP/3 Stereophone introducing personal stereo audio to the world.
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SP/3X
In 1960 Koss released the predecessor to the SP/3 with a lighter design, more comfortable headband and superior sound quality.
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Pro/4AA
In 1970 Pro/4AA set the standard for full-size professional headphones delivering true full frequency performance.
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Koss World Headquarters
On June 25, 1971 John C. Koss unveiled the new Koss World Headquarters in Milwaukee, Wisconsin.
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HV/1A
In 1974, Koss released the HV/1A the first dynamic headphone capable of reproducing all 10 audible octaves.
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Porta Pro
In 1984 the acclaimed Porta Pro was released and set performance and comfort standards worldwide for decades to come.
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JCK/300 Kordless System
In 1989 the JCK/300 Kordless Headphone system set the standard for infrared wireless headphones.
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ESP/950
In 1990 Koss's revolutionary ESP/950 electrostatic headphones introduced breakthrough high-fidelity sound.
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Pro4S Studio
Carrying on the legacy of the Pro/4 line, 2014's Pro4S Studio Headphone was specifically designed for audio professionals.
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KPH30i
In 2017 Koss released the acclaimed KPH30i featuring an ultra-light weight design with remarkable high-fidelity sound.
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Utility Series
In 2021 Koss Utility Series introduced three new headphones allowing listeners to connect via Lightning, USB-C and 3.5mm.
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True Wireless Earbuds
In 2023 Koss continued it's evolution of wireless headphones with the TWS250i True Wireless Earbuds.
Product Description
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Introduced in 1984
For over 40 years Porta Pro continues to be one of the most recognized headphones around the world.
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Legendary Sound
Experience breathtaking high-fidelity audio at 15-25,000Hz with deep bass and a remarkable midrange.
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Detachable Cord System
Enjoy the freedom to connect to Lightning, USB-C and 3.5mm devices with a detachable cord system.
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There's a DAC for That
Enjoy high resolution 24-bit/96kHz audio with the built in DAC found on the USB-C Utility cord.
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The Perfect Fit
An adjustable headband and ComfortZone temporal pads provide unrivaled comfort and convenience.
1 Legendary Design 2 High-Fidelity Audio 3 Utility Series 4 24-bit/96kHZ DAC 5 Comfort Zone
Legendary Design
Porta Pro Utility features an all-new transparent design with a sleek stealth grey headband, flat cord and blue/red drivers.
Koss Utility Series
Koss Utility Series features a detachable cord system giving listener's the freedom to connect to the devices they own now, or in the future.
The Choice is Yours
Get started right away with the included 3.5mm Utility cord or bundle an additional Lighting or USB-C Utility cord to connect to more of your devices.
Comfort Zone
Porta Pro Utility features an adjustable headband and ComfortZone adjustable temporal pads providing a comfortable listening experience.
The Most Versatile Porta Pro Ever
In-Line Controls
Stay connected with the additional Lighting and USB-C Utility cords which feature a convenient in-line microphone and remote for taking calls, controlling music and activating your devices voice assistant.
Connect to Everything
Porta Pro Utility features a unique detachable cord system, which means you can connect to the devices you own now, or in the future. Get started right away with the included 3.5mm Utility cord or bundle an additional Lighting or USB-C Utility cord to connect to more of your devices.
More Products From Koss
 Porta Pro Utility |  Porta Pro |  Porta Pro Limited Edition |  KPH40 Utility |  KPH30i |  KSC75 | |
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Customer Reviews
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166
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15,874
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1,768
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890
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3,321
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8,010
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Price
| $49.99 | $39.99 | $59.99 | $39.99 | $29.99 | $19.99 |
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Type
| On Ear | On Ear | On Ear | On Ear | On Ear | Ear Clip |
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Connection
| Utility Series | 3.5mm | 3.5mm | Utility Series | 3.5mm | 3.5mm |
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Utility Series
| 3.5mm, USB-C & Lightning | - | - | 3.5mm, USB-C & Lightning | - | - |
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Audio Controls
| Utility Cord Remote | - | In-Line Remote | Utility Cord Remote | In-Line Remote | - |
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Microphone
| Utility Cord Remote | - | In-Line Remote | Utility Cord Remote | In-Line Remote | - |
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Noies Cancelling
| - | - | - | - | - | - |
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Adjustable Headband
| Yes | Yes | Yes | Yes | Yes | - |
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Collapsible
| Yes | Yes | Yes | - | - | - |
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Carrying Case/Pouch
| Carrying Pouch | Carrying Pouch | Hardshell Case | - | - | - |
Compare with similar items
This Item  Koss Porta Pro Utility On-Ear Headphones, Detachable Interchangeable Cord System, Collapsible Design, Stealth Grey |  |  |  |  |  | |
| Price | $49.99 | $39.99 | $39.99 | -20% $39.99 List: $49.99 | $69.99 | $19.99 |
| Delivery | Get it as soon as Saturday, May 11 | — | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 | Get it as soon as Saturday, May 11 |
| Customer Ratings | ||||||
| Sound quality | ||||||
| Comfort | ||||||
| Value for money | ||||||
| Volume control | ||||||
| Noise cancellation | ||||||
| Sold By | Koss Stereophones | Koss Stereophones | Koss Stereophones | Koss Stereophones | Koss Stereophones | Koss Stereophones |
| connectivity tech | Wired | Wired | Wired | Wired | Wired | Wired |
| headphones form factor | On Ear | On Ear | On Ear | On Ear | In Ear | On Ear |
| connector type | USB Type C | USB Type C | USB Type C | connector type | USB Type C | connector type |
| headphones jack | 3.5 mm Jack | 3.5 mm Jack | 3.5 mm Jack | 3.5 mm Jack | 3.5 mm Jack | 3.5 mm Jack |
| cable feature | Retractable, Detachable | Detachable | Detachable | Retractable | Detachable | High fidelity clip headphones Exceptionally wide frequency response Computer-optimized neodymium, iron, and boron rare-earth magnet structures deliver amazing clarity at any volume Include a straight, dual entry, 4 foot cord with gold-flashed 3.5 mm (1/8") plug Pivoting clips promise accommodating fit Enjoy greater volume despite low-voltage portable devices Covered under the Koss Stereophones Limited Lifetime Warranty |
| control type | Media Control | Media Control | Media Control | Volume Control | Media Control | Media Control |
Videos
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Koss ProtaPro Utility series headphones review
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Koss Utility Series
Koss Stereophones
Reviews with images
Good sound; poor construction
Plastic arm holding earphone to band failed. This happened after only 6 months of use. Bought a replacement for now, but will be doing more research to find a better quality pair.
Top reviews from other countries
Paüni Yakis
Great Headphones
Reviewed in Canada on December 8, 2023
Paüni Yakis
Reviewed in Canada on December 8, 2023
Images in this review
Ian McDonell
Excellent Open Back Headphones
Reviewed in Canada on November 20, 2022