Microphone and Headphone Audio Jack Splitter

3.5mm Audio Headset Mic Y Splitter Cable Adapter TRRS to 2 TRS For Tabs, Laptops

Headphone Splitter for 2 Headphones 3.5mm Audio Stereo Y Splitter Cable Headphone Jack Adapter for Earphone Headset Splitter Compatible with Separate Microphone and Headphone Jack 4FT

Geekria Nylon Braided Headset Y Splitter Adapter, Headphones Splitter Cable for PC Computer, Notebook and Old Version Laptop with Microphone and Audio

Laptop PC Adapter Plug Turns a 3.5 mm combo headphone/microphone port into two distinct ports - one for headphone jack on your PC / laptop, the other

HAVIT 3.5mm Headphone Mic Adapter Cable for Laptop PC, 1 Male To 2 Dual Female Jack

3.5mm Headphone Splitter Cable for PC – UGREEN

I got a 3.5mm to USB-C adapter so that I can plug an external microphone into my 2021 Razer Blade 15 Advanced, but it's only detecting output, rather than a mic input.

Audio Headset Mic Y Splitter Cable Adapter TRRS to 2 TRS For Tabs, Laptops- 3.5mm

Jack Microphone Headset Audio Splitter Cable Female 2 Male - Temu

Headphone Audio Splitter Cable Female To 2 Male 3.5mm Jack Splitter Adapter With Microphone Aux