b connected therewith instead of an additional antenna 9 b the receiver component 9 a can be connected with the antenna that is present in the base module 2 for transmission which is thus fashioned as a quasi transmission and reception antenna in the present exemplary embodiment the current charge state of the battery of an appertaining hearing aid device can only be correctly displayed on the display 4 when the receiving module 7 is also present in the remote control 1 if the receiving module 7 is not present only an estimate of the charge state of the voltage source can be displayed that is generated for example based on the operating time in the remote control 1 according to the exemplary embodiment the receiving module 7 also has operating elements 8 a and 8 b given a remote control 1 held correctly in the hand these operating elements 8 a and 8 b are not located on the housing top side of the remote control 1 or of the receiving module 7 but rather the operating elements 8 a and 8 b are disposed significantly orthogonally to the operating elements 3 a 3 g disposed on the housing top side of the remote control 1 by this design an easy differentiation is possible between operating elements which when actuated effect only a signal transmission from the remote control 1 to a hearing aid device and operating elements that effect a return transmission of a signal from the hearing aid device to the remote control 1 differentiation can also be made between the different functions in this manner.