Claims (1)
Claim 1 (Independent)
The ornamental design for a headphone, as shown and described.
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FIG. 1 is a front perspective view of a headphone, showing our design;
FIG. 2 is a rear perspective view thereof,
FIG. 3 is front view thereof;
FIG. 4 is a rear view thereof;
FIG. 5 is a side view thereof;
FIG. 6 is an opposing side view thereof;
FIG. 7 is a top view thereof; and,
FIG. 8 is a bottom view thereof.
The broken lines form no part of the claimed design.