These are original German earmuffs, the same style that were worn by the army. Very cool piece of German equipment. They fold almost completely flat to fit in a pocket or wherever. Decent used condition.
These earmuffs are pictured in several 1930s/1940s catalogs. The earlier catalog from 1931 has the price is Pfennings (Pf) while the other from the late 1930s has the price is Reichsmarks (RM).