Sennheiser HD 206 Stereo Headphone

Sennheiser HD-201 Lightweight Over Ear Headphones (Discontinued by Manufacturer)

LTGEM Headphone Case Compatible with Sennheiser HD 4.40,HD 598,HD579,HD558,HD202 II,HD201,HD419,HD229,HD202,HD518,HD555 Headphone-Black

Sennheiser HD 202 II Professional Headphones (Black)

Aurum Cables 3-Pack 6.35mm Male to 3.5mm Female Stereo Adapter

Headphone Splitter, Knitted 3.5mm Audio Splitter TRS 3-Pole Splitter Cable for Headphones Earphones Speakers -DuKabel (Zebra White)

Plantronics CS510 - Over-the-Head monaural Wireless Headset System - DECT 6.0

AmazonBasics USB 2.0 Extension Cable - A-Male to A-Female Adapter Cord - 3.3 Feet (1 Meters)

UGREEN Headphone Splitter, 3.5mm Audio Stereo Y Splitter Extension Cable Male to Female Dual Headphone Jack Adapter for Earphone, Headset Compatible with iPhone, Samsung, Tablet, Laptop (Black)

Philips SHP9500 HiFi Precision Stereo Over-Ear Headphones (Black)