In a remotely controllable, especially remote-control-programmable hearing aid with an external control device (1) with a keyboard (2), display device (3) and a data processing device (4) and also a hearing aid (9) controllable by the control device (1), in the control device there is a signal generator (11) actuatable and controllable via the keyboard (2) and the data processing device (4). This generator is releasably connected by a cable (12, 13, 14) to the hearing aid so that the control device (1) can be used together with the hearing aid to determine the hearing curve or, in general, the audiometric values of the wearer of the hearing aid in real conditions.