Earbud

FIG. 1 is a front, bottom and right side perspective view of an earbud, showing our new design; FIG. 2 is a front view of the earbud of FIG. 1 ; FIG. 3 is a back view of the earbud of FIG. 1 ; FIG. 4 is a right side view of the earbud of FIG. 1 ; FIG. 5 is a left side view of the earbud of FIG. 1 ; FIG. 6 is a top view of the earbud of FIG. 1 ; and, FIG. 7 is a bottom view of the earbud of FIG. 1 . The broken lines shown in FIGS. 1 - 4 illustrate portions of the earbud that form no part of the claimed design.