Headset model for 3.5mm: Dual 3.5mm trs male plugs to 3.5mm trrrs male plug, compatible with HIFIMAN Edition XS/ANANDA-BTHE4XX/HE-400i/HE560/HE-350/HE1000/HE400SE/SUNDARA/OneOdio Pro-10/A70/Sennheiser Pro HD 25 HD 25 Light HD 25 Plus/Pioneer HDJ-CUE1/HDJ-X5-K/HDJ-X7-K/HDJ-X5BT/SE-MJ522/SE-512/SE-502 ZX110/WH-1000XM4/SHP9500/SHP9600/X2HR/X3, etc.
eBay