Koss KPH30iRB On-Ear Headphones, Retro Style, Wired with 3.5mm Plug, Rhythm Beige

The Original American Stereophone Company: A Legacy of Pioneering Innovation

In 1958, John C. Koss forever changed the way we experience music when he introduced the world's first SP/3 stereophone. Driven by a vision to replicate the excitement of live musical performances, Koss set out to bring listeners closer to the music they love through unparalleled sound reproduction.

This dedication to audio excellence has become the foundation of the Koss brand, recognized by music lovers worldwide as the "Sound of Koss."

From the groundbreaking SP/3 to the latest wireless and true wireless offerings, Koss has continued to push the boundaries of personal audio, consistently delivering innovative products that redefine the listening experience.

The Journey of Koss Headphones

1958: The Birth of the Stereophone Before the world's first SP/3 Stereophone, John C. Koss developed a portable stereo photograph player with side-wing speakers. In 1958, he revolutionized the industry by inventing the SP/3, introducing personal stereo audio to the world.

1960: The SP/3X Koss released the predecessor to the SP/3, the SP/3X, featuring a lighter design, a more comfortable headband, and superior sound quality.

1970: The Pro/4AA The Pro/4AA set the standard for full-size professional headphones, delivering true full-frequency performance.

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

1974: The HV/1A Koss released the HV/1A, the first dynamic headphone capable of reproducing all 10 audible octaves.

1984: The Porta Pro The acclaimed Porta Pro was released, setting performance and comfort standards worldwide for decades.

1989: The JCK/300 Kordless System The JCK/300 Kordless Headphone system set the standard for infrared wireless headphones.

1990: The ESP/950 Koss's revolutionary ESP/950 electrostatic headphones introduced breakthrough high-fidelity sound.

2014: The Pro4S Studio Carrying on the legacy of the Pro/4 line, the Pro4S Studio Headphone was specifically designed for audio professionals.

2017: The KPH30i Koss released the acclaimed KPH30i, featuring an ultra-lightweight design with remarkable high-fidelity sound.

2021: The Utility Series Koss introduced the Utility Series, offering three new headphones with Lightning, USB-C, and 3.5mm connectivity options.

2023: True Wireless Earbuds Koss continued its evolution of wireless headphones with the TWS250i True Wireless Earbuds.

The KPH30i: Lightweight Listening Redefined

The KPH30i packs big sound into a small, ultra-lightweight on-ear headphone with modern features, delivering remarkable high-fidelity audio at 15-25,000Hz with deep bass and superior highs and midrange.

With an in-line microphone and remote, you can easily control your music, pausing, playing, skipping tracks, and answering or ending calls. The adjustable headband and soft silicone strap ensure a comfortable listening experience for hours of use.

Available in four stylish colorways – White, Grey, Rhythm Beige, and Clear – the KPH30i offers a remarkable listening experience in a virtually weightless design.

product information: