An electronic apparatus comprising: a communicator configured to communicate with an external apparatus; a plurality of sensors (111, 112) arranged in a predetermined direction; a display; and a processor configured to: in a first mode, perform an operation of the electronic apparatus based on a first sensor value sensed through the plurality of sensors; in a second mode, based on an information about a content image displayed by the external apparatus being received from the external apparatus through the communicator: identify the surrounding illumination and control the display to display an image with a brightness for indicating a position of the electronic apparatus, wherein the brightness of the image is higher than an intensity of the surrounding illumination; or identify the color of ambient light and control the display to display an image with a color for indicating a position of the electronic apparatus, wherein the color of the image is distinguishable from the color of the ambient light, identify, in the second mode, a direction of a user motion based on a change in second sensor values sensed through the plurality of sensors (111, 112), the user motion occurring above and in proximity to the electronic apparatus in the direction of arranging the plurality of sensors, and control the communicator to output a control command to the external apparatus based on the identified direction of the user motion. a communicator configured to communicate with an external apparatus; a plurality of sensors (111, 112) arranged in a predetermined direction; a display; and a processor configured to: in a first mode, perform an operation of the electronic apparatus based on a first sensor value sensed through the plurality of sensors; in a second mode, based on an information about a content image displayed by the external apparatus being received from the external apparatus through the communicator: identify the surrounding illumination and control the display to display an image with a brightness for indicating a position of the electronic apparatus, wherein the brightness of the image is higher than an intensity of the surrounding illumination; or identify the color of ambient light and control the display to display an image with a color for indicating a position of the electronic apparatus, wherein the color of the image is distinguishable from the color of the ambient light, in a first mode, perform an operation of the electronic apparatus based on a first sensor value sensed through the plurality of sensors; in a second mode, based on an information about a content image displayed by the external apparatus being received from the external apparatus through the communicator: identify the surrounding illumination and control the display to display an image with a brightness for indicating a position of the electronic apparatus, wherein the brightness of the image is higher than an intensity of the surrounding illumination; or identify the color of ambient light and control the display to display an image with a color for indicating a position of the electronic apparatus, wherein the color of the image is distinguishable from the color of the ambient light, identify the surrounding illumination and control the display to display an image with a brightness for indicating a position of the electronic apparatus, wherein the brightness of the image is higher than an intensity of the surrounding illumination; or identify the color of ambient light and control the display to display an image with a color for indicating a position of the electronic apparatus, wherein the color of the image is distinguishable from the color of the ambient light, identify, in the second mode, a direction of a user motion based on a change in second sensor values sensed through the plurality of sensors (111, 112), the user motion occurring above and in proximity to the electronic apparatus in the direction of arranging the plurality of sensors, and control the communicator to output a control command to the external apparatus based on the identified direction of the user motion.