koss r 80

Koss® CL20i Wired On-Ear Vintage-Style Headphones with Mic, In-Line Remote, 3.5-mm Connector, and Transparent Design, Deep Bass

Koss Plug Earphone - Stereo - Mini-phone (3.5mm) - Wired - 16 Ohm - 20 Hz to 20 kHz - Earbud - Binaural - In-ear - 3.94 ft Cable - Red

Koss 187197 KEB6i In-Ear Headphones - White - Stereo - Wired - Earbud - Binaural - In-ear - White

Koss® UR29 Wired Folding Over-Ear Headphones with 3.5-mm Connector and Closed Earcushions

PTX6 Portable Stereophone

Koss KSC22i Ear Clip - Stereo - Mini-phone - Wired - 16 Ohm - 60 Hz - 20 kHz - Earbud, Over-the-ear - Binaural - In-ear - 4 ft Cable - Black

Koss CS200i Headsets & Gaming - Stereo - Mini-phone (3.5mm) - Wired - 32 Ohm - 20 Hz to 22 kHz - Over-the-head - Binaural - 8 ft Cable