Dell Visor VRC100 User Manual page 12

NOTE: Ensure you route the cable to lie on your back to avoid entangling yourself when moving about.
NOTE: The flip-up design of the headset also enables users wearing spectacles to enjoy the Mixed Reality experience.
CAUTION: When wearing the headset, ensure you move hair away from your forehead for better sensor detection.
5 Follow the on-screen instructions to set up and calibrate your headset for optimal performance.
12 Quick Setup of Hardware (Dell Visor VR118)