The ornamental design for a wireless portable vacuumsealer, as shown and described.
FIG. 1 is a first perspective view of a wireless portable vacuum sealer showing my new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof; and,
FIG. 9 is a perspective view of another state of the wireless portable vacuum sealer thereof.
The broken lines shown in the drawings depict portions of the wireless portable vacuum sealer in which the design is embodied that form no part of the claimed design.