The ornamental design for a fobdevice, as shown and described.
FIG. 1 is a front perspective view of a fob device, such as an authentication token;
FIG. 2 is a front view of the fob device;
FIG. 3 is a back view of the fob device;
FIG. 4 is a left-side view of the fob device;
FIG. 5 is a right-side view of the fob device;
FIG. 6 is a top view of the fob device;
FIG. 7 is a bottom view of the fob device;
FIG. 8 is an enlarged bottom view of the fob device which shows additional disclaimed features of the fob device;
FIG. 9 is a first enlarged perspective bottom view of the fob device; and,
FIG. 10 is a second enlarged perspective bottom view of the fob device.
The dashed broken lines depict portions of the fob device that form no part of the claimed design. The dot-dashed broken lines represent a boundary of the claimed fob device and form no part of the claimed design.