The ornamental design for a parabolicreflector for microphone, as shown and described.
FIG. 1 is a perspective view of a parabolic reflector for microphone showing my new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left-side view thereof;
FIG. 5 is a right-side view thereof;
FIG. 6 is a plan view thereof;
FIG. 7 is a bottom plan view thereof; and,
FIG. 8 is a perspective view thereof.
The microphone is shown for illustrative purpose only and forms no part of the claimed design. Broken lines shown in the drawings illustrate the portions within the recessed area on the parabolic reflector and the microphone, and form no part of the claimed design.