The ornamental design for an electronicmouse, as shown and described.
FIG. 1 is a front perspective view of an electronic mouse showing my new design;
FIG. 2 is a rear perspective view thereof;
FIG. 3 is a top view thereof;
FIG. 4 is a front view thereof;
FIG. 5 is a rear view thereof;
FIG. 6 is a right side view thereof; and,
FIG. 7 is a left side view thereof.
The broken line showing of various regions, including the unshaded areas therein, is for illustrative purposes and forms 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.