1459884943-059dc8b9-2288-4920-a332-643a9af8fc04

According to the invention, a dosing dispenser of simple construction, for the dosing of components held in a reservoir section by at least one pump unit connected thereto and an adjuster element, which may be pivoted about a horizontal axis by a handle for operation of a pump piston of the pump unit and about a vertical axis for adjustment of the amount ratios of the components may be produced. These sound signals simulate the at least known sound signals from said at least one external sound source in anti-phase. The controller assigns a particular car to a particular sector.