FIG. 1 is a front elevation view for a Bluetooth earphone showing my new design;
FIG. 2 is a rear elevation view thereof;
FIG. 3 is a left side elevation view thereof;
FIG. 4 is a right side elevation view thereof;
FIG. 5 is a top plan view thereof;
FIG. 6 is a bottom plan view thereof;
FIG. 7 is an enlarged view from the indication in FIG. 2 thereof; and,
FIG. 8 is a front,top perspective view thereof.
The broken lines in the drawings depict environment and features of the Bluetooth earphone that form no part of the claimed design.