Koss Pathfinder

Koss Sparkplug Earset - Stereo - Wired - 16 Ohm - 10 Hz - 20 kHz - Earbud - Binaural - In-ear - 4 ft Cable - Black

Koss Pathfinder Noise-Isolating Earbuds, Black/White | Quill

Koss In-Ear Stereophone with Microphone Element Connects to Tubular Port Black

Koss PATHFINDRB Lightweight Earbud Stereophone with In-line Volume Control - (BLACK)

Koss SparkPlug W White