A first electronic apparatus comprising: interface circuitry configured to connect the first electronic apparatus to a server and to at least one second electronic apparatus (102, 103, 104), wherein each of the at least one second electronic apparatuses comprises a display and a loudspeaker; a microphone configured to receive voice commands; a display; a loudspeaker; and a processor configured to control the first electronic apparatus to: based on receiving a voice command (21, 31), control the interface circuitry to transmit, to the server, information of the received voice command (21, 31), identification information of the first electronic apparatus and identification information of each of the at least one second electronic apparatuses (102, 103, 104), wherein each of the at least one second electronic apparatuses is either not provided with a microphone or has its microphone inactivated, receive, from the server through the interface circuitry, a control instruction corresponding to the voice command (21, 31) and a response message including an audio signal and/or a video signal corresponding to a sound and an image, respectively, to be output as a process result of the voice command, identify one of the first electronic apparatus and the at least one second electronic apparatus as a target apparatus with respect to the control instruction, and output the received response message through the target apparatus. interface circuitry configured to connect the first electronic apparatus to a server and to at least one second electronic apparatus (102, 103, 104), wherein each of the at least one second electronic apparatuses comprises a display and a loudspeaker; a microphone configured to receive voice commands; a display; a loudspeaker; and a processor configured to control the first electronic apparatus to: based on receiving a voice command (21, 31), control the interface circuitry to transmit, to the server, information of the received voice command (21, 31), identification information of the first electronic apparatus and identification information of each of the at least one second electronic apparatuses (102, 103, 104), wherein each of the at least one second electronic apparatuses is either not provided with a microphone or has its microphone inactivated, receive, from the server through the interface circuitry, a control instruction corresponding to the voice command (21, 31) and a response message including an audio signal and/or a video signal corresponding to a sound and an image, respectively, to be output as a process result of the voice command, identify one of the first electronic apparatus and the at least one second electronic apparatus as a target apparatus with respect to the control instruction, and output the received response message through the target apparatus. based on receiving a voice command (21, 31), control the interface circuitry to transmit, to the server, information of the received voice command (21, 31), identification information of the first electronic apparatus and identification information of each of the at least one second electronic apparatuses (102, 103, 104), wherein each of the at least one second electronic apparatuses is either not provided with a microphone or has its microphone inactivated, receive, from the server through the interface circuitry, a control instruction corresponding to the voice command (21, 31) and a response message including an audio signal and/or a video signal corresponding to a sound and an image, respectively, to be output as a process result of the voice command, identify one of the first electronic apparatus and the at least one second electronic apparatus as a target apparatus with respect to the control instruction, and output the received response message through the target apparatus.