The ornamental design for a volume pedal, as shown and described.
FIG. 1 is a front view of a volume pedal, showing my new design;
FIG. 2 is a rear view of the volume pedal of FIG. 1;
FIG. 3 is a left side view of the volume pedal of FIG. 1;
FIG. 4 is a right side view of the volume pedal of FIG. 1;
FIG. 5 is a top view of the volume pedal of FIG. 1;
FIG. 6 is a bottom view of the volume pedal of FIG. 1;
FIG. 7 is a top, front, right perspective view of the volume pedal of FIG. 1; and,
FIG. 8 is a top, front, right perspective view of the volume pedal of FIG. 1 in an alternative orientation.
The unshaded regions demarcated by one or more broken lines or a combination of one or more broken and solid lines in all the figures represent unclaimed portions that form no part of the claimed design. The shaded regions in all the figures represent surface shape only and do not represent any particular material or color. Unless otherwise described above, the broken lines in all the figures are provided for environmental purposes only and form no part of the claimed design.