An electronic device (101, 201, 301) comprising: an audio input module (110; 210; 310), configured to: receive an audio signal, perform voice detection by determining a level on the audio signal, and transfer a first driving signal, and the audio signal, to a first processor (130; 230; 330) if the level of the audio signal is greater than or equal to a preset threshold, wherein upon receipt of the first driving signal and the audio signal, the first processor (130; 230; 330) is configured to: wake up based on the received first driving signal; perform a first voice recognition to extract a voice signal on the received audio signal, wherein the first voice recognition includes a keyword recognition and a speaker recognition based on the received audio signal; and in response to success of the first voice recognition during the first voice recognition, transfer a second driving signal and the voice signal to a second processor; wherein upon receipt of the second driving signal and the voice signal, the second processor (170; 270; 370) is configured to: wake up based on the received second driving signal; perform a second voice recognition based on the voice signal output by the first voice recognition, wherein the second voice recognition includes a command recognition; and execute an application associated with a voice command based on a result of the command recognition, and wherein the second processor (170; 270; 370) is further configured to maintain an off state of a display during the second voice recognition, and turn on the display to display an execution screen of the application in response to success of the second voice recognition. an audio input module (110; 210; 310), configured to: receive an audio signal, perform voice detection by determining a level on the audio signal, and transfer a first driving signal, and the audio signal, to a first processor (130; 230; 330) if the level of the audio signal is greater than or equal to a preset threshold, receive an audio signal, perform voice detection by determining a level on the audio signal, and transfer a first driving signal, and the audio signal, to a first processor (130; 230; 330) if the level of the audio signal is greater than or equal to a preset threshold, wherein upon receipt of the first driving signal and the audio signal, the first processor (130; 230; 330) is configured to: wake up based on the received first driving signal; perform a first voice recognition to extract a voice signal on the received audio signal, wherein the first voice recognition includes a keyword recognition and a speaker recognition based on the received audio signal; and in response to success of the first voice recognition during the first voice recognition, transfer a second driving signal and the voice signal to a second processor; wake up based on the received first driving signal; perform a first voice recognition to extract a voice signal on the received audio signal, wherein the first voice recognition includes a keyword recognition and a speaker recognition based on the received audio signal; and in response to success of the first voice recognition during the first voice recognition, transfer a second driving signal and the voice signal to a second processor; wherein upon receipt of the second driving signal and the voice signal, the second processor (170; 270; 370) is configured to: wake up based on the received second driving signal; perform a second voice recognition based on the voice signal output by the first voice recognition, wherein the second voice recognition includes a command recognition; and execute an application associated with a voice command based on a result of the command recognition, and wherein the second processor (170; 270; 370) is further configured to maintain an off state of a display during the second voice recognition, and turn on the display to display an execution screen of the application in response to success of the second voice recognition. wake up based on the received second driving signal; perform a second voice recognition based on the voice signal output by the first voice recognition, wherein the second voice recognition includes a command recognition; and execute an application associated with a voice command based on a result of the command recognition, and wherein the second processor (170; 270; 370) is further configured to maintain an off state of a display during the second voice recognition, and turn on the display to display an execution screen of the application in response to success of the second voice recognition.