Amazon.com: 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 : Video Games
Replacement Aux Cable Aux Cord For Sennheiser Game ONE Zero PC 373D GSP 350/500/600 Gaming Headset to Xbox One PS4 PC/Smartphone - AliExpress