The ornamental design for a multimediavideo and audio wireless transmitting device, as shown and described.
FIG. 1 is a perspective view of a multimedia video and audio wireless transmitting device showing my new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof, the broken lines in the drawing show structural environment and form no part of the claim;
FIG. 4 is a left side elevational view thereof;
FIG. 5 is a right side elevational view thereof;
FIG. 6 is a top plan view thereof; and,
FIG. 7 is a bottom plan view thereof, the broken lines in the drawing show structural environment and form no part of the claim; and,
FIG. 8 is another perspective view thereof with an accessory member shown in broken lines for purposes of illustrating environment and forming no part of the claim.