Abstract: A hearing-aid device and that permits individuals other than the wearer of the hearing-aid to monitor and adjust one or more of the various characteristics (e.g., amplification, tonal quality, etc.) of sound provided to the wearer. The hearing-aid system of the present invention includes a small, sound input unit, a hand-held remote control unit, and a pair of stereophonic earphones. The sound input unit includes a pair of stereophonic microphones for sensing sound in the ambient environment. Each of the microphones are connected to respective controllable amplifier means for controllably amplifying and/or otherwise modifying the sound sensed by the microphones. The remote control unit is connected to the input unit and has a parameter adjustment means for controlling various functional parameters of the system. The parameter adjustment means includes volume adjustment means for controlling the degree of amplification applied to sound sensed by the microphone means.