RCS1 - Klein Helmet Headset Connector for Cobra® and Midland Handheld Radios
Amazon.com: PC Headset to 3.5mm Smartphone Adapter: Converts Dual 3.5mm to 3.5mm, PC Computer Headset to iPhone, BlackBerry, Droid, Palm, Samsung, LG, HTC : Electronics
Tactical Headset Adapter 5-pin Lemo ( Selex / Bowman Type ) To Nexus Tp-120 Connector For Dynamic Microphone Nato Wiring Config - Walkie Talkie Parts & Accessories - AliExpress
Double Headset Y Adapter - MyPilotStore.com
General Aviation Headset to 5-Pin Adapter – Rugged Radios
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Point Source Audio ADP-4MxPH PSA Headset Adapter Cable ADP-4MXPH
USB-UNIV Universal External USB Headset Adapter
Plantronics QD Cord to Analog (PC) 3.5mm Jack Adapter | Headsets.com
Amazon.com: ienza 2.5mm Male 3-Pole to 3.5mm Female 4-Pole TRRS Headset Jack Adapter Compatible with Panasonic Cordless Phones to Headsets or Headphones with a 3.5mm TRRS Plug (Mic & Headphone) : Electronics
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Amazon.com: Cubilux 3.5mm to Double Audio Jack Headphone Sharing Splitter Compatible with MacBook iPad iPod, Smartphone, Computer, Laptop, Tablet, MP3, 2-Way 3.5 mm Earphone Ports Adapter, Dual Headsets Connector : Electronics