Internal Unit for Wireless Doorbell

FIG. 1 is a front perspective view of an internal unit for a wireless doorbell according to a first embodiment showing our new design;

FIG. 2 is a rear 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 elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof;

FIG. 9 is a front perspective view of an internal unit for a wireless doorbell according to a second embodiment;

FIG. 10 is a rear perspective view of FIG. 9 ;

FIG. 11 is a front elevational view of FIG. 9 ;

FIG. 12 is a rear elevational view of FIG. 9 ;

FIG. 13 is a left side elevational view of FIG. 9 ;

FIG. 14 is a right side elevational view of FIG. 9 ;

FIG. 15 is a top plan view of FIG. 9 ; and,

FIG. 16 is a bottom plan view of FIG. 9 .

The dash-dash broken lines in the drawings depict the portions of the internal unit for the wireless doorbell that form no part of the claimed design.