We claim the ornamental design for a device for electrical current treatment, as shown and described.
FIG. 1 is a perspective view of a device for electrical current treatment, showing our new design;
FIG. 2 is a left side elevational view thereof;
FIG. 3 is a right side elevational view thereof;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is a front elevational view thereof; and,
FIG. 7 is a rear elevational view thereof.
Broken lines are for illustrating unclaimed portions of the device for electrical current treatment; the broken lines form no part of the claimed design.