Patent Publication Number: US-D440560-S

Title: Dual-tone multi-frequency microphone

Description:
FIG. 1 is a top, front left isometric view of one embodiment of a dual-tone multi-frequency microphone showing our new design; 
     FIG. 2 is a front elevational view thereof; 
     FIG. 3 is a left side elevational view thereof; 
     FIG. 4 is a right side elevational view thereof; 
     FIG. 5 is a top plan view thereof; 
     FIG. 6 is a bottom plan view thereof; and, 
     FIG. 7 is a rear elevational view thereof. 
     The broken lines shown in FIGS. 1-4 and 6-7 are included for the purpose of illustrating environmental elements only and form no part of the claimed design.