Koss UR23iB Headset - Stereo - Mini-phone (3.5mm) - Wired - 34 Ohm - 20 Hz to 20 kHz - On-ear, Over-the-ear - Binaural - Circumaural - Noise Canceling - Blue

Koss KEB9i Earbuds & In Ear Headphones - Stereo - Mini-phone (3.5mm) - Wired - 16 Ohm - 18 Hz to 20 kHz - Earbud - Binaural - In-ear - 3.9 ft Cable - Noise Cancelling Microphone - Noise Canceling - Pink

Koss FitClips KSC32i Ear Clip - Stereo - TRRS, Mini-phone (3.5mm) - Wired - 16 Ohm - 15 Hz to 20 kHz - Earbud - Binaural - In-ear - 4 ft Cable - Blue

Koss KEB9i Earbuds & In Ear Headphones - Stereo - Mini-phone (3.5mm), TRRS - Wired - 16 Ohm - 18 Hz to 20 kHz - Earbud - Binaural - In-ear - 4 ft Cable - Black

Koss KEB9i Earbuds & In Ear Headphones - Stereo - Mini-phone (3.5mm), TRRS - Wired - 16 Ohm - 18 Hz to 20 kHz - Earbud - Binaural - In-ear - 4 ft Cable - White

Lenovo USB-C Wired In-Ear Headphone - Stereo - USB Type C - Wired - 32 Ohm - 100 Hz to 200 kHz - Earbud - Binaural - In-ear - 3.9 ft (1.20 m) Cable - Black

Lenovo Analog In-Ear Headphone Gen II (3.5mm) - Stereo - Mini-phone (3.5mm) - Wired - 32 Ohm - 100 Hz to 200 kHz - Earbud - Binaural - In-ear - 3.9 ft (1.20 m) Cable - Black