Amazon.com: daily headset QD USB Phone Headset Adapter Cable Compatible with Plantronics Quick Connect, Spk Volume Up Down Mic Mute Unmute in-line Controls : Electronics
StarTech.com USB-C Headphone Splitter USB Type C Dual Headset Adapter w/Mic USB C to 3.5mm Adapter - USBC-AUDIO-SPLITTER - Audio & Video Cables - CDW.com
USB-C Headphone Splitter/Dongle with Mic - Audio Cables and Adapters | StarTech.com
Shoretel Polycom 3.5mm to RJ9 Headset Adapter | HeadsetBuddy
Headset Adapter, 3.5mm Jack Headphone Splitter CTIA Headphone Adapter Mic and Audio Cable with Separate Microphone and Headphone Connector for Gaming Headset to PC - 8inch/20CM Black - Walmart.com
DELOCK 65459: Headset Adapter 3,5mm 4pol - 2x 3,5mm 3pol at reichelt elektronik
Amazon.com: Retevis Earpiece Adapter,2 Pin to 3.5mm Walkie Talkies Headset Adapter Only Fit RT21 RT22 RT27 RT7 H-777 H777S RT18 RT19 RT22S (Not Fit for Other Brands) 2 Way Radios (1 Pack) :