FIG. 1 is a right-front perspective view of a combined headset with mask in a first position, the left-front perspective view being a mirror image;
FIG. 2 is a right-rear perspective view thereof, the left-rear perspective view being a mirror image;
FIG. 3 is an exploded right-rear perspective view thereof, the exploded left-rear perspective view being a mirror image;
FIG. 4 is a detail view taken from the right-rear perspective view thereof shown in FIG. 2, the corresponding left-rear detail view being a mirror image;
FIG. 5 is a front elevational view thereof;
FIG. 6 is a detail view taken from FIG. 5;
FIG. 7 is a top plan view thereof;
FIG. 8 is a rear elevational view thereof;
FIG. 9 is a rear elevational view thereof with the strap removed;
FIG. 10 is a bottom plan view thereof;
FIG. 11 is a right-side elevational view thereof;
FIG. 12 is a left-side elevational view thereof;
FIG. 13 is a detail view taken from FIG. 12;
FIG. 14 is a right-front perspective view of the combined headset with mask in a second position; the left-front perspective view being a mirror image;
FIG. 15 is a right-rear perspective view thereof, the left-rear perspective view being a mirror image;
FIG. 16 is a front elevational view thereof;
FIG. 17 is a top plan view thereof;
FIG. 18 is a rear elevational view thereof;
FIG. 19 is a bottom plan view thereof;
FIG. 20 is a right-side elevational view thereof;
FIG. 21 is a left-side elevational view thereof;
FIG. 22 is a right-front perspective view of the combined headset with mask in a third position; the left-front perspective view being a mirror image;
FIG. 23 is a right-rear perspective view thereof, the left-rear perspective view being a mirror image;
FIG. 24 is a front elevational view thereof;
FIG. 25 is a top plan view thereof;
FIG. 26 is a rear elevational view thereof;
FIG. 27 is a bottom plan view thereof;
FIG. 28 is a right-side elevational view thereof;
FIG. 29 is a left-side elevational view thereof;
FIG. 30 is a right-front perspective view of the combined headset with mask in a fourth position;
FIG. 31 is a right-rear perspective view thereof;
FIG. 32 is a front elevational view thereof;
FIG. 33 is a top plan view thereof;
FIG. 34 is a rear elevational view thereof;
FIG. 35 is a bottom plan view thereof;
FIG. 36 is a right-side elevational view thereof;
FIG. 37 is a left-side elevational view thereof;
FIG. 38 is a right-front perspective view of the combined headset with mask in a fifth position;
FIG. 39 is a right-rear perspective view thereof;
FIG. 40 is a front elevational view thereof;
FIG. 41 is a top plan view thereof;
FIG. 42 is a rear elevational view thereof;
FIG. 43 is a bottom plan view thereof;
FIG. 44 is a right-side elevational view thereof; and,
FIG. 45 is a left-side elevational view thereof.
In FIG. 9, the strap, which forms no part of the claimed design, is removed so that it does not obscure the design. In the drawings, the broken lines are for the purpose of illustrating portions of the combined headset with mask and form no part of the claimed design.