Bone Conduction Earphone

FIG. 1 is a top and left side perspective view of a bone conduction earphone, showing my new design; FIG. 2 is a bottom and right side perspective view thereof; FIG. 3 is a front elevational view thereof; FIG. 4 is a rear elevational view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a top plan view thereof; FIG. 8 is a bottom plan view thereof; FIG. 9 is an enlarged view of the selected portion 9 in FIG. 1 ; FIG. 10 is an enlarged view of the selected portion 10 in FIG. 1 ; and, FIG. 11 is an enlarged view of the selected portion 11 in FIG. 2 . The broken lines shown in the drawings depict portions of the bone conduction earphone that form no part of the claimed design. The dash-dot broken lines encircling portions of the bone conduction earphone in FIGS. 1 and 2 and illustrated in the enlarged views of FIGS. 9 , 10 and 11 form no part of the claimed design.