A hearing aid system comprising a receiver in the ear and a system for identification of the type of receiver

The invention relates to a hearing aid system comprising a BTE-part adapted for being located at an ear of a user and an ITE-part adapted to be located in an ear canal of a user, the ITE-part comprising a receiver for converting an electric output signal comprising frequencies in the human audible frequency range to an output sound, the ITE-part further comprising a resistive ID-element. The invention further relates to a method and use. The object of the present invention is to provide a relatively simple scheme for identifying a receiver in a hearing aid system. The problem is solved in that the hearing aid system comprises a measurement circuit for measuring an ID-parameter indicative of the resistance of said resistive ID-element, wherein said measurement circuit is adapted to use said electric output signal to determine said ID-parameter. An advantage of the invention is that it utilizes the electric output signal used for driving the receiver (speaker). It does NOT require an additional signal, for exam