A hearing system including a hearing aid and a personal communication device, and said hearing aid and said personal communication device both including a short range data transceiver (15, 29) for providing a short range data communication link, - the hearing aid including o a signal processor processing an electric input signal from input transducers (11, 12) according to audio processing parameters of the hearing aid; ∘ a signal processing sub-system with at least two modes of operation, said sub-system applying respective sets of audio processing parameters for each of said at least two modes of operation; and ∘ a program selector component automatically selecting one of said at least two modes of operation for the signal processing sub-system; - the personal communication device comprises an auxiliary classifier component monitoring the use of said personal communication device, and - wherein the program selector component is adapted to receive input from said auxiliary classifier component, and to take the input into account when selecting one of said at least two modes of operation for the signal processing sub-system; characterized in that - the hearing aid further includes a classifier analyzing the electric input signal from input transducers (11, 12) for classifying an auditory environment of the hearing aid; - wherein the program selector component is automatically selecting one of said at least two modes of operation for the signal processing sub-system according to the classifier's classification; and - wherein the auxiliary classifier component is adapted for generating a notification when detecting a change of environment or use of the hearing system (10, 20), and for transmitting the notification to said hearing aid via said short range data communication link. - the hearing aid including o a signal processor processing an electric input signal from input transducers (11, 12) according to audio processing parameters of the hearing aid; ∘ a signal processing sub-system with at least two modes of operation, said sub-system applying respective sets of audio processing parameters for each of said at least two modes of operation; and ∘ a program selector component automatically selecting one of said at least two modes of operation for the signal processing sub-system; o a signal processor processing an electric input signal from input transducers (11, 12) according to audio processing parameters of the hearing aid; ∘ a signal processing sub-system with at least two modes of operation, said sub-system applying respective sets of audio processing parameters for each of said at least two modes of operation; and ∘ a program selector component automatically selecting one of said at least two modes of operation for the signal processing sub-system; - the personal communication device comprises an auxiliary classifier component monitoring the use of said personal communication device, and - wherein the program selector component is adapted to receive input from said auxiliary classifier component, and to take the input into account when selecting one of said at least two modes of operation for the signal processing sub-system; - the hearing aid further includes a classifier analyzing the electric input signal from input transducers (11, 12) for classifying an auditory environment of the hearing aid; - wherein the program selector component is automatically selecting one of said at least two modes of operation for the signal processing sub-system according to the classifier's classification; and - wherein the auxiliary classifier component is adapted for generating a notification when detecting a change of environment or use of the hearing system (10, 20), and for transmitting the notification to said hearing aid via said short range data communication link.