Earbud

FIG. 1 is a perspective view of an earbud, showing our new design;

FIG. 2 is a rear view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The dot-dash broken line represents a boundary of the claimed design and forms no part of the claimed design. The broken lines depicting the remainder of the earbud show features that form no part of the claimed design.