Headset Combo Y-Adapter for Sennheiser PC 360 SE, PC 350, GSP 300, Game Zero and Game ONE Gaming Headsets Compatible with Xbox One, PS4 and Smartphone Adapter: Computers & Accessories - Amazon.com
EPOS I SENNHEISER GSP 300 - Headset - full size - wired - 3.5 mm jack - noise isolating - black, blue - Walmart.com - Walmart.com
Sennheiser GSP 300 Review - PCGameBenchmark
Sennheiser GSP300 Gaming Headset - Newegg.com
Amazon.com: EPOS I Sennheiser GAME ONE Gaming Headset, Open Acoustic, Noise-canceling mic, Flip-To-Mute, XXL plush velvet ear pads, compatible with PC, Mac, Xbox One, PS4, Nintendo Switch, and Smartphone - Black (506080):