Koss Porta Professional Restricted Version On-Ear Headphones, in-Line Microphone, Quantity Management and Contact Distant Management, Retro Model, Contains Onerous Carry Case, Wired with 3.5mm Plug, Rhythm Beige

From the model

The Unique American Stereophone Firm

In 1958 John C. Koss modified the best way all of us take heed to music when he invented the world’s first SP/3 stereophone.

Koss sought to copy the joy of a stay musical efficiency, permitting listeners to expertise sound as that they had by no means earlier than, bringing them nearer to the music they love. Music lovers all over the world acknowledge that dedication to accuracy in sound copy as: The Sound of Koss

Porta Professional Assortment

Retro Headphones

Utility Sequence

Wi-fi Headphones

Finest Sellers

Delivery of the Stereophone

Earlier than the world’s first SP/3 Stereophone in 1958, John C. Koss developed a conveyable stereo {photograph} participant with side-wing audio system.

World’s First SP/3 Stereophone

in 1958 John C. Koss invented the world’s first SP/3 Stereophone introducing private stereo audio to the world.

SP/3X

In 1960 Koss launched the predecessor to the SP/3 with a lighter design, extra snug headband and superior sound high quality.

Professional/4AA

In 1970 Professional/4AA set the usual for full-size skilled headphones delivering true full frequency efficiency.

Koss World Headquarters

On June 25, 1971 John C. Koss unveiled the brand new Koss World Headquarters in Milwaukee, Wisconsin.

HV/1A

In 1974, Koss launched the HV/1A the primary dynamic headphone able to reproducing all 10 audible octaves.

Porta Professional

In 1984 the acclaimed Porta Professional was launched and set efficiency and luxury requirements worldwide for many years to come back.

JCK/300 Kordless System

In 1989 the JCK/300 Kordless Headphone system set the usual for infrared wi-fi headphones.

ESP/950

In 1990 Koss’s revolutionary ESP/950 electrostatic headphones launched breakthrough high-fidelity sound.

Pro4S Studio

Carrying on the legacy of the Professional/4 line, 2014’s Pro4S Studio Headphone was particularly designed for audio professionals.

KPH30i

In 2017 Koss launched the acclaimed KPH30i that includes an ultra-light weight design with exceptional high-fidelity sound.

Utility Sequence

In 2021 Koss Utility Sequence launched three new headphones permitting listeners to attach through Lightning, USB-C and three.5mm.

True Wi-fi Earbuds

In 2023 Koss continued it is evolution of wi-fi headphones with the TWS250i True Wi-fi Earbuds.

Keep Linked – Take calls and management your music with the in-line microphone, distant & attenuating quantity management
Excellent Portability – Porta Professional Restricted Version features a branded hard-shell case for straightforward transport
Collapsible Design – The final word moveable headphones with a collapsible headband design for protecting storage
Restricted Lifetime Guarantee