The ornamental design for a mobileelectronictrainingdevice, as shown and described.
FIG. 1 is a perspective view of a mobile electronics training device, showing my new design, shown in its environmental use;
FIG. 2 is another perspective view of the design of FIG. 1;
FIG. 3 is a front elevational view of FIG. 2;
FIG. 4 is a rear elevational view of FIG. 2;
FIG. 5 is a left side elevational view of FIG. 2;
FIG. 6 is a right side elevational view of FIG. 2, without a connector cord;
FIG. 7 is a top plain view of FIG. 2; and,
FIG. 8 is a bottom plain view of FIG. 2.
The broken lines showing a peripheral element in FIG. 1 are for illustrative purposes only. Other broken lines in the Figures illustrate portions of the design that form no part of the claim.