The invention relates to a device for generating a cold atmospheric pressure plasma for treating human and/or animal surfaces, comprising a flat flexible multilayer system with a face which faces the surface to be treated and a face which faces away from the surface to be treated. The multilayer system comprises the following layers: namely a first electrode layer on the multilayer system face facing away from the surface to be treated, a second electrode layer on the multilayer system face facing the surface to be treated, said electrode layer having a plurality of recesses or being designed in a grid-like or meandering manner, a dielectricum layer which is arranged between the first electrode layer and the second electrode layer, and a spacer layer which is arranged adjacently to the second electrode layer on the multilayer system face facing the surface to be treated. The invention further relates to a cable, a generator unit for providing a high voltage, and a system.