Range extender device

FIG. 1 is a front, top, right-side perspective view of a range extender device;

FIG. 2 is a back, bottom, left-side perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a back elevation view thereof;

FIG. 5 is a left-side elevation view thereof;

FIG. 6 is a right-side elevation view thereof;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken lines depict portions of the range extender device that form no part of the claimed design.