A mobile apparatus comprising: a display; a camera configured to obtain an image of a target device (10, 20); a user interface configured to receive a user's inputs; and a controller configured to: recognise and register the target device in the image, connect the mobile apparatus to the target device, in response to a user's input, control the display to display the image of the target device and information related to an object included in content being played by the target device, display at least one virtual image including other content information related to the object around the image of the target device within the field of view, FOV, of the camera, and in response to the user's input for selecting at least one of the image of the target device and the at least one virtual image, to transmit a control signal to the target device, wherein the controller is further configured: in response to a user input to move a center line of the FOV of the camera by moving the mobile apparatus, to control the display to enlarge one virtual image located in the moving direction of the center line of the FOV of the camera, and to transmit a control signal to the target device to control the target device to play content corresponding to the enlarged virtual image. a display; a camera configured to obtain an image of a target device (10, 20); a user interface configured to receive a user's inputs; and a controller configured to: recognise and register the target device in the image, connect the mobile apparatus to the target device, in response to a user's input, control the display to display the image of the target device and information related to an object included in content being played by the target device, display at least one virtual image including other content information related to the object around the image of the target device within the field of view, FOV, of the camera, and in response to the user's input for selecting at least one of the image of the target device and the at least one virtual image, to transmit a control signal to the target device, recognise and register the target device in the image, connect the mobile apparatus to the target device, in response to a user's input, control the display to display the image of the target device and information related to an object included in content being played by the target device, display at least one virtual image including other content information related to the object around the image of the target device within the field of view, FOV, of the camera, and in response to the user's input for selecting at least one of the image of the target device and the at least one virtual image, to transmit a control signal to the target device, wherein the controller is further configured: in response to a user input to move a center line of the FOV of the camera by moving the mobile apparatus, to control the display to enlarge one virtual image located in the moving direction of the center line of the FOV of the camera, and to transmit a control signal to the target device to control the target device to play content corresponding to the enlarged virtual image. in response to a user input to move a center line of the FOV of the camera by moving the mobile apparatus, to control the display to enlarge one virtual image located in the moving direction of the center line of the FOV of the camera, and to transmit a control signal to the target device to control the target device to play content corresponding to the enlarged virtual image.