The ornamental design for an electronicmouse, as shown and described.
FIG. 1 is a perspective view of an electronic mouse showing the new design;
FIG. 2 is a top view thereof;
FIG. 3 is a left side view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a front view thereof;
FIG. 6 is a rear view thereof; and,
FIG. 7 is a bottom view thereof.
The broken lines shown in the drawings represent unclaimed portions of the electronic mouse and form no part of the claimed design. The difference in shading indicates a contrast of appearance and does not depict any particular color, texture, or material.