Buzzer

FIG. 1 is a front, right, top perspective view of a buzzer, showing my new design; FIG. 2 is a rear, left, bottom perspective view thereof; FIG. 3 is a front elevational view thereof; FIG. 4 is a rear elevational view thereof; FIG. 5 is a left side view thereof; FIG. 6 is a right side view thereof; FIG. 7 is a top plan view of the reduced scale thereof; FIG. 8 is a bottom plan view of the reduced scale thereof; and, FIG. 9 is a front, right, top perspective view of its reduced scale, indicating the usage environment. The dashed broken lines in the figures are for the purposes of illustrating portions of the buzzer and form no part of the claimed design. The dashed broken lines in the FIG. 9 are for the purposes of indicating the usage environment of the buzzer and form no part of the claimed design.