Can the Meta Quest Pro be used without Controller?

[living.lab.58]

At the moment we use a Quest 2 as a stationary Monitor that is simulating a microscope.

Because of that we dont need the controllers for any interaction with the quest

and we dont need a guardian system as the Quest 2 is not moving at all.

Can the Meta Quest Pro be used without connected controllers (i.e. no batteries inserted) ?

[pro_zac]

Quest Pro can be used with hand tracking. Controllers are not required.