Amazon.com: USB Adapter Compatible with Any Plantronics or TruVoice Wired Headset with a QD and Includes Volume Control and Mute Functionality (Connects Headset to PC, Laptop and Softphones) : Electronics
StarTech Headset Adapter MUYHSMFF B&H Photo Video
Helicopter to General Aviation Headset Adapter – Rugged Radios
Aviation Headset USB Adapter – ELITE Simulation Solutions
Microsoft Xbox One Stereo Headset Adapter, 6JV-00006 - Walmart.com
Amazon.com: Headsets Splitter Adapter, DUKABEL 3.5mm Jack Separate Headphone & Mic Plug Adapter 3.5mm Combo Audio Adapter Cable for PS4 Gaming Headset PC Xbox One Laptop - : Electronics
Delock Products 65344 Delock Headset Adapter 1 x 3.5 mm 4 pin Stereo jack male > 2 x 3.5 mm 3 pin Stereo jack female (OMTP)
USB-UNIV Universal External USB Headset Adapter
Buy Lanberg Headset Adapter 3.5mm (Male) 4-Pin to 2x3.5mm (Female) at MaxGaming.com
Point Source Audio ADP-5FxPH PSA Headset Adapter Cable ADP-5FXPH
Pilot USA Dual Headset Adapter For General Aviation Headsets - PA-72S | Aircraft Spruce