Questions about ASUS ROG Strix Wireless

You can also use the headset wired via the supplied cables (3.5mm audio cable, 3.5mm to 2x 3.5mm adapter). Alternatively, you can of course also call Asus customer service and ask there. I assume that they will sell you a new adapter, their service is excellent in this respect: +41 848 111 010

Yes, there are still two pieces in the main warehouse.

There seems to be a defect. You can enter a warranty claim in your customer account and follow the steps mentioned: https://www.digitec.ch/de/ReturnsAndWarranty