An apparatus control system (1, 1A-1C) comprising: a sound inputting device; and apparatus control means for controlling an apparatus, wherein the sound inputting device includes inputting means for inputting a sound operation corresponding to a voice operation emitted by a user, and transmission means for transmitting to the apparatus control means sound data based on the sound operation, and the apparatus control means, upon receiving the sound data from the sound inputting device, (i) analyzes the sound data, (ii) determines an operational skill level of the user based on an estimated age of the user (iii) determines details of the sound operation that is an instruction for the apparatus, (iv) generates a control command for the apparatus based on the operational skill level of the user and the details of the sound operation, and (v) transmits the control command to the apparatus, wherein the generation of the control command includes (vi)-by referring to, based on the operational skill level of the user and the details of the sound operation, a table associating each of a plurality of operational skill levels with adjustment units of control target items of the apparatus that are minimum-adjustable widths for the control target items, determine the adjustment unit corresponding to the operational skill level of the user and (vii) generating the control command based on the details of the sound operation and the determined adjustment unit, wherein the apparatus is an air conditioner, and wherein the control target items include at least one of a target temperature, an airflow direction, or a blowout air amount in the air conditioner. a sound inputting device; and apparatus control means for controlling an apparatus, wherein the sound inputting device includes inputting means for inputting a sound operation corresponding to a voice operation emitted by a user, and transmission means for transmitting to the apparatus control means sound data based on the sound operation, and inputting means for inputting a sound operation corresponding to a voice operation emitted by a user, and transmission means for transmitting to the apparatus control means sound data based on the sound operation, and the apparatus control means, upon receiving the sound data from the sound inputting device, (i) analyzes the sound data, (ii) determines an operational skill level of the user based on an estimated age of the user (iii) determines details of the sound operation that is an instruction for the apparatus, (iv) generates a control command for the apparatus based on the operational skill level of the user and the details of the sound operation, and (v) transmits the control command to the apparatus, wherein the generation of the control command includes (vi)-by referring to, based on the operational skill level of the user and the details of the sound operation, a table associating each of a plurality of operational skill levels with adjustment units of control target items of the apparatus that are minimum-adjustable widths for the control target items, determine the adjustment unit corresponding to the operational skill level of the user and (vii) generating the control command based on the details of the sound operation and the determined adjustment unit, wherein the apparatus is an air conditioner, and wherein the control target items include at least one of a target temperature, an airflow direction, or a blowout air amount in the air conditioner.