Amazon.com: ZOOAUX Headphone Splitter Mic Cable for Computer, 3.5mm Headphone Mic Stereo Y Splitter, Headset 3.5mm Female to 2 Dual Male Microphone Audio Jack Stereo Jack to Gaming Speaker PC Adapter :
Parallel Recording Using A Microphone Splitter Transformer - Sonarworks Blog
USB-C Headphone Splitter/Dongle with Mic - Audio Cables and Adapters | StarTech.com Europe
MS12 Mic Splitter by Lambden Audio - UK Stock - Studiospares
Whirlwind SP1X2 Mic Splitter
ART SPLITComPro Mic Splitter/Combiner Signal splitter
Amazon.com: D & K Exclusives Headphone Splitter for Computer 3.5mm Female to 2 Dual 3.5mm Male Mic Audio Y Splitter Cable Smartphone Headset to PC Adapter : Electronics