FIG. 1 is a perspective front view of a set of keys for a handset showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top view thereof; and,

FIG. 6 is a bottom view thereof.

The broken line showing of the environmental structure of the handset is for illustrative purposes only and forms no part of the claimed design.