Porta Pro® Headset

The Koss Porta Pro® Communication Headset features a flexible, hands-free microphone and connects to devices through a simple 3.5mm TRRS plug.

Koss Porta Pros On-Ear Headphones Review 2022

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KOSS Porta Pro Wireless Bluetooth-enabled Dynamic Open Headphone black

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Why These 1984 Headphones Are Still Amazing

Be Heard - Be heard clearly at home or in the office with the electret microphone Simple Connection - Easily connects the Porta Pro Communication

Koss Porta Pro Double-Sided On-Ear Communication Headset, Flexible, Hands-Free Electret Microphone, Collapsible Design, Wired 3.5mm TRRS Plug, Black

Koss Porta Pro Headphone Review: Wow! The Best Value on the Market, Period., by Alex Rowe

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Koss Porta Pro Limited Edition On-Ear Headphones, in-Line Microphone, Volume Control and Touch Remote Control, Retro Style, Includes Hard Carry Case, Wired with 3.5mm Plug, Rhythm Beige : Electronics

just bought my first Koss Porta Pro : r/headphones