FIG. 1 is a perspective view of a character input device for a mobile phone;

FIG. 2 is a front view of the character input device of FIG. 1;

FIG. 3 is a rear view of the character input device of FIG. 1;

FIG. 4 is a left side view of the character input device of FIG. 1;

FIG. 5 is a right side view of the character input device of FIG. 1;

FIG. 6 is a top plan view of the character input device of FIG. 1;

FIG. 7 is a bottom plan view of the character input device of FIG. 1; and,

FIG. 8 is a perspective view of the character input device of FIG. 1.

The broken line showing of the mobile phone in FIG. 8 is for illustrative purposes only and forms no part of the claimed design.