It communicates using Bluetooth. I've been hoping for a Bluetooth 3DMouse for 5 years now!
https://www.3dconnexion.com/forum/viewtopic.php?t=4361
A pointer in one hand and a 3Dmouse in the other would make an awesome combo. The 3DMouse would control your torso (walking,tilting,turning,ducking) while the headset would control your virtual head relative to your torso. Then the pointer controls some sort of pointing device like in
https://www.youtube.com/watch?v=fsLVfGZqdMU
I wonder if this ties into GamePad API so it could be used on a webpage just like you can with a 3DMouse. Put a Bluetooth dongle on a desktop computer and use both at the same time.