Abstract: Electronic labeling system includes a rail for supporting labels and at least one electronic display label, the rail having two facing wings with each of the wings having in its medial region a longitudinal groove, the electronic label having on one of its two opposite edges a longitudinal rib adapted to be inserted in the groove of one of the rail wings and on the other of the opposite edges at least one retractable pin adapted to snap into the groove of the other rail wing, and at least one recess in which is disposed a ferromagnetic core carrying the pin which is urged to project from the corresponding edge of the label, the core being adapted to be displaced in the recess by magnetic attraction to retract the pin and free the label.