Introduced in 1984
For over 40 years Porta Pro continues to be one of the most recognized headphones around the world.
Legendary Sound
Experience breathtaking high-fidelity audio at 15-25,000Hz with deep bass and a remarkable midrange.
Perfectly Portable
Porta Pro Limited Edition's unique collapsable design and included case allows for easy portability.
Modern Performance
Answer/End calls and Pause/Play/Skip tracks and with in-line microphone and remote.
The Perfect Fit
An adjustable headband and ComfortZone temporal pads provide unrivaled comfort and convenience.
Collapsable Design
Porta Pro Limited Edition features a unique collapsible design for easy storage and ultimate portability.
The Sound of Koss
Koss engineered 60 Ohm drivers deliver remarkable high-fidelity audio at 15-25,000Hz producing deep bass, crisp highs and superior midrange.
In-Line Controls
Pause/Play/Skip tracks as well as Answer/End calls with intuitive in-line controls and microphone.
Included Hard Shell Case
Protect your investment with the included Porta Pro Limited Edition hardshell case for easy storage and portability.
Two Colors. One Remarkable Listening Experience.
Porta Pro Limited Edition Rhythm Beige
First introduced in 1970 with the iconic Pro/4AA, the Koss Rhythm Beige colorway has made it's way onto many legendary Koss Headphones such as KPH30i and KPH40 Utility and now, Porta Pro Limited Edition.
Porta Pro Limited Edition Black Gold
Luxury looks meets legendary sound with an all-new Black Gold colorway featured on Porta Pro Limited Edition for those looking for a more sophisticated listening experience..
Bold Sound. Bold Colors.
Official Koss Standard and OverSized Cushions
Experience breathtaking high-fidelity audio paired with Official Standard and Oversized cushions from Koss. Designed specifically for Porta Pro, Koss colored cushions feature soft, breathable foam for a comfortable, stylish listening experience.
Five Bold New Colors
Put a little color on your playlist with Koss official Standard and Oversized cushions available in Orange, Red, Blue, Purple, Yellow and Classic Black.
More Products From Koss
 Porta Pro Limited Edition |  Oversized Cushions |  Standard Size Cushions |  Porta Pro Wireless |  Porta Pro |  Porta Pro Utility |  KPH40 Utility | |
|---|---|---|---|---|---|---|---|
Customer Reviews | — | — | — | — | — | — | — |
Price | — | — | — | — | — | — | — |
Headphone Type | On Ear | On Ear | Ear Clip | On Ear | On Ear | On Ear | On Ear |
Connection | 3.5mm | 3.5mm | 3.5mm | Bluetooth, Analog Pass Through | 3.5mm | Utility Series | Utility Series |
Utility Series | — | — | — | — | — | 3.5mm, USB-C & Lightning | 3.5mm, USB-C & Lightning |
Audio Controls | In-Line Remote | In-Line Remote | — | Integrated Audio Controls | — | Utility Cord Remote | Utility Cord Remote |
Microphone | In-Line Remote | In-Line Remote | — | Integrated Microphone | — | Utility Cord Remote | Utility Cord Remote |
Noise Cancelling | — | — | — | — | — | — | — |
Adjustable Headband | Yes | Yes | — | Yes | Yes | Yes | Yes |
Collapsible | Yes | — | — | Yes | Yes | Yes | — |
Carrying Case/Pouch | Hardshell Case | — | — | Soft Shell Case | Carrying Pouch | Carrying Pouch | — |
The Original American Stereophone Company
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
Standard & Oversized Cushions
Porta Pro Collection
Retro Headphones
Utility Series
Best Sellers
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.
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.
SP/3X
In 1960 Koss released the predecessor to the SP/3 with a lighter design, more comfortable headband and superior sound quality.
Pro/4AA
In 1970 Pro/4AA set the standard for full-size professional headphones delivering true full frequency performance.
Koss World Headquarters
On June 25, 1971 John C. Koss unveiled the new Koss World Headquarters in Milwaukee, Wisconsin.
HV/1A
In 1974, Koss released the HV/1A the first dynamic headphone capable of reproducing all 10 audible octaves.
Porta Pro
In 1984 the acclaimed Porta Pro was released and set performance and comfort standards worldwide for decades to come.
JCK/300 Kordless System
In 1989 the JCK/300 Kordless Headphone system set the standard for infrared wireless headphones.
ESP/950
In 1990 Koss's revolutionary ESP/950 electrostatic headphones introduced breakthrough high-fidelity sound.
Pro4S Studio
Carrying on the legacy of the Pro/4 line, 2014's Pro4S Studio Headphone was specifically designed for audio professionals.
KPH30i
In 2017 Koss released the acclaimed KPH30i featuring an ultra-light weight design with remarkable high-fidelity sound.
Utility Series
In 2021 Koss Utility Series introduced three new headphones allowing listeners to connect via Lightning, USB-C and 3.5mm.
True Wireless Earbuds
In 2023 Koss continued it's evolution of wireless headphones with the TWS250i True Wireless Earbuds.
Introduced in 1984
For over 40 years Porta Pro continues to be one of the most recognized headphones around the world.
Legendary Sound
Experience breathtaking high-fidelity audio at 15-25,000Hz with deep bass and a remarkable midrange.
Perfectly Portable
Porta Pro Limited Edition's unique collapsable design and included case allows for easy portability.
Modern Performance
Answer/End calls and Pause/Play/Skip tracks and with in-line microphone and remote.
The Perfect Fit
An adjustable headband and ComfortZone temporal pads provide unrivaled comfort and convenience.
Collapsable Design
Porta Pro Limited Edition features a unique collapsible design for easy storage and ultimate portability.
The Sound of Koss
Koss engineered 60 Ohm drivers deliver remarkable high-fidelity audio at 15-25,000Hz producing deep bass, crisp highs and superior midrange.
In-Line Controls
Pause/Play/Skip tracks as well as Answer/End calls with intuitive in-line controls and microphone.
Included Hard Shell Case
Protect your investment with the included Porta Pro Limited Edition hardshell case for easy storage and portability.
Two Colors. One Remarkable Listening Experience.
Porta Pro Limited Edition Rhythm Beige
First introduced in 1970 with the iconic Pro/4AA, the Koss Rhythm Beige colorway has made it's way onto many legendary Koss Headphones such as KPH30i and KPH40 Utility and now, Porta Pro Limited Edition.
Porta Pro Limited Edition Black Gold
Luxury looks meets legendary sound with an all-new Black Gold colorway featured on Porta Pro Limited Edition for those looking for a more sophisticated listening experience..
Retro Look. Legendary Sound.
The Koss Pro Limited Edition embodies the perfect blend of high-fidelity audio and nostalgic style, delivering a rich and expansive audio experience with deep bass, crisp highs an a breathtaking midrange you have to hear to believe. #HearingIsBelieving
Bold Sound. Bold Colors.
Official Koss Standard and OverSized Cushions
Experience breathtaking high-fidelity audio paired with Official Standard and Oversized cushions from Koss. Designed specifically for Porta Pro, Koss colored cushions feature soft, breathable foam for a comfortable, stylish listening experience.
Five Bold New Colors
Put a little color on your playlist with Koss official Standard and Oversized cushions available in Orange, Red, Blue, Purple, Yellow and Classic Black.
| Frequency Response | 15 - 25,000 Hz |
|---|---|
| Impedance | 60 Ohms |
| SPL | 111 dB |
| Drivers | Koss Dynamic |
| Cushions | Foam |
| Controls | In-Line Controls for music/calls |
| ComfortZone | Adjustable Temporal Pads |
| Included | Porta Pro Limited Edition, Hardshell Case |
More Products From Koss
 Porta Pro Limited Edition | Oversized Cushions | Standard Size Cushions | Porta Pro Wireless | Porta Pro | Porta Pro Utility | KPH40 Utility |
|---|---|---|---|---|---|---|
| Customer Reviews | ||||||
| — | — | — | — | — | — | — |
| Price | ||||||
| — | — | — | — | — | — | — |
| Headphone Type | ||||||
| On Ear | On Ear | Ear Clip | On Ear | On Ear | On Ear | On Ear |
| Connection | ||||||
| 3.5mm | 3.5mm | 3.5mm | Bluetooth, Analog Pass Through | 3.5mm | Utility Series | Utility Series |
| Utility Series | ||||||
| — | — | — | — | — | 3.5mm, USB-C & Lightning | 3.5mm, USB-C & Lightning |
| Audio Controls | ||||||
| In-Line Remote | In-Line Remote | — | Integrated Audio Controls | — | Utility Cord Remote | Utility Cord Remote |
| Microphone | ||||||
| In-Line Remote | In-Line Remote | — | Integrated Microphone | — | Utility Cord Remote | Utility Cord Remote |
| Noise Cancelling | ||||||
| — | — | — | — | — | — | — |
| Adjustable Headband | ||||||
| Yes | Yes | — | Yes | Yes | Yes | Yes |
| Collapsible | ||||||
| Yes | — | — | Yes | Yes | Yes | — |
| Carrying Case/Pouch | ||||||
| Hardshell Case | — | — | Soft Shell Case | Carrying Pouch | Carrying Pouch | — |
The Original American Stereophone Company
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
Standard & Oversized Cushions
Porta Pro Collection
Retro Headphones
Utility Series
Best Sellers
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.
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.
SP/3X
In 1960 Koss released the predecessor to the SP/3 with a lighter design, more comfortable headband and superior sound quality.
Pro/4AA
In 1970 Pro/4AA set the standard for full-size professional headphones delivering true full frequency performance.
Koss World Headquarters
On June 25, 1971 John C. Koss unveiled the new Koss World Headquarters in Milwaukee, Wisconsin.
HV/1A
In 1974, Koss released the HV/1A the first dynamic headphone capable of reproducing all 10 audible octaves.
Porta Pro
In 1984 the acclaimed Porta Pro was released and set performance and comfort standards worldwide for decades to come.
JCK/300 Kordless System
In 1989 the JCK/300 Kordless Headphone system set the standard for infrared wireless headphones.
ESP/950
In 1990 Koss's revolutionary ESP/950 electrostatic headphones introduced breakthrough high-fidelity sound.
Pro4S Studio
Carrying on the legacy of the Pro/4 line, 2014's Pro4S Studio Headphone was specifically designed for audio professionals.
KPH30i
In 2017 Koss released the acclaimed KPH30i featuring an ultra-light weight design with remarkable high-fidelity sound.
Utility Series
In 2021 Koss Utility Series introduced three new headphones allowing listeners to connect via Lightning, USB-C and 3.5mm.
True Wireless Earbuds
In 2023 Koss continued it's evolution of wireless headphones with the TWS250i True Wireless Earbuds.