Headphone Y Splitter For Computer 3.5mm Female to 3.5mm Male Headset PC Laptop

This3.5mm Headset Adapter Splitter is your perfect solution! Designed to split a single 4-position TRRS audio jack (combo headphone/mic) into two separate 3-position TRS jacks, it allows you to connect your headset's microphone and audio functions to separate ports on your desktop or laptop.

eBay