Refrigerator

A refrigerator comprising:

• a proximity sensor;
• a display;
• a microphone;
• a main body including one or more chambers;
• at least one chamber door including the proximity sensor, the display and the microphone, and coupled to the main body via a hinge;
• and
• at least one processor configured to:
• based on a first predetermined condition being detected by the proximity sensor while the refrigerator is in a voice recognition deactivation state and the display is turned off, control the display to display a first screen indicating a voice recognition preparation step of a voice recognition activation state,
• based on a first voice command being received by the microphone while the refrigerator is in the voice recognition activation state, control the display to display a second screen indicating a voice processing step of the voice recognition activation state,
• performing a function associated with the first voice command,
• after performing the function associated with the first voice command, switch from the voice recognition activation state to the voice recognition deactivation state,
• based on a predetermined voice signal being received by the microphone while the refrigerator is in the voice recognition deactivation state, control the display to display the first screen indicating the voice recognition preparation step of the voice recognition activation state,
• based on a second voice command being received by the microphone while the refrigerator is in the voice recognition activation state, control the display to display the second screen indicating the voice processing step of the voice recognition activation state, and
• based on a second predetermined condition being satisfied, control the display to display temperature information of at least one of the one or more chambers of the main body.