The ornamental design for a protectivecover for bluetoothheadset, as shown and described.
FIG. 1 is a first perspective view of a protective cover for bluetooth headset showing my new design;
FIG. 2 is a second perspective view thereof;
FIG. 3 is a front view thereof;
FIG. 4 is a back view thereof;
FIG. 5 is a left side view thereof;
FIG. 6 is a right side view thereof;
FIG. 7 is a top view thereof;
FIG. 8 is a bottom view thereof; and,
FIG. 9 is a perspective view of another state of the protective cover for bluetooth headset thereof.
The broken lines shown in the drawings depict portions of the protective cover for bluetooth headset in which the design is embodied that form no part of the claimed design.