#$%^&*AU2019202646A120191107.pdf#####ABSTRACT A cochlear implant hearing aid system is disclosed. The cochlear implant hearing aid system comprises an external part. The external part includes a sound pickup unit configured to pick up sound from the environment and a sound processing unit 5 configured to process said sound. The cochlear implant hearing aid system further comprises an implant part. The implant part includes an implant processing unit and a plurality of cochlea stimulation electrodes for stimulation of a cochlea of a user. The cochlear implant hearing aid system further comprises a near-infrared transmitter configured to transmit a near-infrared wave. The cochlear implant hearing aid system 10 further comprises a near-infrared receiver configured to receive said near-infrared wave. [Fig. 1 to be published]1/9 I4 I I D I I ~~CLr C) I at -C - - - --r- - - - - - - - - - - - - - -