The ornamental design for an audiovisualdevice, as shown and described.
FIG. 1 is a perspective view of an audio visual device showing our new design:
FIG. 2 is a front elevational view thereof;
FIG. 3 is a left side elevational view thereof;
FIG. 4 is a right side elevational view thereof;
FIG. 5 is a top plan view thereof; and
FIG. 6 is a perspective view of another embodiment of an audio visual device (a speaker box) showing our new design;
FIG. 7 is a front elevational view thereof;
FIG. 8 is a left side elevational view thereof;
FIG. 9 is a right side elevational view thereof; and,
FIG. 10 is a top plan view thereof.
Portions in broken lines are for illustrative purposes only and form no part of claimed design. Dot-dash broken lines define the boundaries of, but not included in, the claimed design.