The ornamental design for an expansionmodule for a handheld electronic device, as shown and described.
FIG. 1 is a top perspective view of an expansion module for a handheld
electronic device; and,
FIG. 2 is a bottom perspective view of the expansion module of FIG. 1.
The particular male electrical connector pins illustrated in FIG. 1 and
female electrical connector socket illustrated in FIG. 2 do not form part
of the invention.
The broken line showing of pins and a socket are for illustrative purposes
only and forms no part of the claimed design.