The headstrap is spring-loaded, so you can extend it to put it on your head, and then it will retract again so the fit is snug. There are adjustable straps on the left, right, and top sides of the headset. Loosen or tighten these until you can shake your head and the headset doesn’t move. The headphones can also be adjusted outward or up and down to ensure a comfortable fit.
There are two ways to adjust visual clarity. First, you can move the headset up and down slightly until you find the sharpest image. Second, you can use the slider on the bottom right side of the headset to adjust distance between the lenses. Push in the knob and slide until the image is sharpest.