A hearing-aid device, in particular in the form of a conventional hearing aid, includes a signal processing apparatus for processing input signals and for outputting output signals. A loudspeaker unit has a loudspeaker and a conductor connection through which the loudspeaker is electrically conductively connected to the signal processing apparatus. A transmitter and reception unit has a coupling element. A coupling is formed over at least one galvanic isolation point between the coupling element and the conductor connection in such a way that at least a part of the loudspeaker unit is used as antenna structure in transmission and reception operation.