The ornamental design for a microphonehousing, as shown and described.
FIG. 1 is a front perspective view of a microphone housing, showing the new design;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a right side view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a top view thereof;
FIG. 7 is a bottom view thereof; and,
FIG. 8 is a perspective view of the microphone housing shown in an environment of use.
The broken line showing of the microphone pop screen in FIG. 8 depicts environment and forms no part of the claimed design. All other broken lines in the figures depict portions of the microphone housing that form no part of the claimed design.