The increasing miniaturization of hearing aids means that less and less space is available for accommodating controls (9). It is thus proposed that, at least one proximity sensor (6; 12A, 12B) be provided on a hearing aid (1; 11) so as to enable an operating function to be performed even without touching a control directly. For operation of a hearing aid (1; 11) in accordance with the invention, in addition to the hearing aid (1; 11) itself, no further technical aids such as remote control, magnets etc. have to be worn as well.