The ornamental design for bow tie headphone, as shown and described.
FIG. 1 is a front view of a bow tie headphone showing my new design;
FIG. 2 is a back view thereof; and,
FIG. 3 is a bottom view in which the left and right sides of the bow tie are detached in the middle showing the magnetic buttons thereof.
The broken lines immediately adjacent the contour lines represent the bounds of the claimed design while all other broken lines are directed to environment and are for illustrative purposes only. The broken lines form no part of the claimed design.