Connecting rods of headphones

FIG. 1 is a right perspective view of connecting rods of headphones showing our new design;

FIG. 2 is a left perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines adjacent the shaded areas represent the bounds of the claimed design while all other broken lines depict portions of the headphones that form no part of the claimed design; the broken lines form no part of the claimed design.