A control device for a home electrical apparatus, comprising: a speaker an inquiry unit configured to generate inquiry information, configured to make an inquiry to the AI apparatus by using voice information in a non-audible range, including content requesting information necessary for controlling the home electrical apparatus and to output corresponding voice information including a predetermined keyword for starting a dialogue with an AI apparatus, prior to the inquiry; an acquisition unit configured to acquire, from the AI apparatus, response information about the inquiry necessary for controlling the home electrical apparatus; a voice information recognition unit included in the acquisition unit and configured to recognize voice information output by the AI apparatus as the response information in response to the inquiry, and to extract answer information included in the response information; a communication unit configured to receive a non-verbal response signal output by the AI apparatus in response to the inquiry and which is alternative to the voice information output by the AI apparatus; and a control unit configured to start the operation of the home electrical apparatus, based on the response signal or the answer information and, while continuing the operation of the home electrical apparatus, configured to determine necessity of acquiring further information necessary for the control of the home electrical apparatus, and to instruct the inquiry unit to execute the inquiry to the AI apparatus if the acquiring information is determined to be necessary; a setting reception unit configured to receive settings for an utterance speed of the voice information output by the inquiry unit; wherein, prior to the inquiry, in response to a start instruction for the home electrical apparatus from the AI apparatus, the control unit starts the home electrical apparatus; and wherein the inquiry to the AI apparatus is made by outputting voice information from the speaker using a natural language spoken by humans. a speaker an inquiry unit configured to generate inquiry information, configured to make an inquiry to the AI apparatus by using voice information in a non-audible range, including content requesting information necessary for controlling the home electrical apparatus and to output corresponding voice information including a predetermined keyword for starting a dialogue with an AI apparatus, prior to the inquiry; an acquisition unit configured to acquire, from the AI apparatus, response information about the inquiry necessary for controlling the home electrical apparatus; a voice information recognition unit included in the acquisition unit and configured to recognize voice information output by the AI apparatus as the response information in response to the inquiry, and to extract answer information included in the response information; a communication unit configured to receive a non-verbal response signal output by the AI apparatus in response to the inquiry and which is alternative to the voice information output by the AI apparatus; and a control unit configured to start the operation of the home electrical apparatus, based on the response signal or the answer information and, while continuing the operation of the home electrical apparatus, configured to determine necessity of acquiring further information necessary for the control of the home electrical apparatus, and to instruct the inquiry unit to execute the inquiry to the AI apparatus if the acquiring information is determined to be necessary; a setting reception unit configured to receive settings for an utterance speed of the voice information output by the inquiry unit; wherein, prior to the inquiry, in response to a start instruction for the home electrical apparatus from the AI apparatus, the control unit starts the home electrical apparatus; and wherein the inquiry to the AI apparatus is made by outputting voice information from the speaker using a natural language spoken by humans.