Head mounted audio-visual display system

FIG. 1 is a rear perspective view of a head mounted audio-visual display system showing our design;

FIG. 2 is a front perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a right-side view thereof;

FIG. 6 is a left-side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines illustrate portions of a head mounted audio-visual display system or pads, and form no part of the claimed design.