That mixer is the Rig’s killer feature, and Plantronics has built it into an intuitively shaped, sleek, black puck that sports a paired cable (USB and 3.5mm audio) for your PC or game console ...

Nyko recommends that you access the Xbox One's Settings menu (double-tap the Home/Guide button) and set the Headset chat mixer setting all the way to Voice. This makes the SpeakerCom output only ...