The ornamental design for an earphoneattachment, as shown and described.
FIG. 1 is a first isometric view of an earphone attachment showing the new design in a first embodiment, showing the earphone attachment for the left ear.
FIG. 2 is a second isometric 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; and,
FIG. 8 is a bottom plan view thereof.
A second embodiment for the right ear is provided, which is a mirror image of the embodiment for the left ear shown in FIGS. 1 through 8.
Stippling and tangency lines in the drawings represent the three-dimensional contours of the design, and are not intended to indicate surface decoration. The broken lines in the drawings depict portions of the earphone attachment and form no part of the claimed design.