Headphone

FIG. 1 is an oblique view of a headphone showing the new design;

FIG. 2 is a front view of the headphone of FIG. 1 .

FIG. 3 is a rear view of the headphone of FIG. 1 .

FIG. 4 is a top view of the headphone of FIG. 1 .

FIG. 5 is a bottom view of the headphone of FIG. 1 .

FIG. 6 is a right view of the headphone of FIG. 1 ; and,

FIG. 7 is a left view of the headphone of FIG. 1 .

The broken lines depict portions of the headphone that forms no part of the claimed design.