FIG. 1 is a bottom view of a headphone, showing my new design;
FIG. 2 is a bottom perspective view thereof;
FIG. 3 is a top perspective view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a front view thereof;
FIG. 6 is a left side view thereof;
FIG. 7 is a right side view thereof; and,
FIG. 8 is a top view thereof.
The broken lines depict portions of the headphones that form no part of the claimed design.