Electronic apparatus and controlling method thereof

An electronic apparatus comprising:

• a communication interface configured to communicate with an external apparatus;
• a display;
• at least one memory storing instructions;
• and
• at least one processor operatively connected to the communication interface, the display, and the at least one memory, wherein the at least one processor is configured to execute the instructions to:
• based on content being displayed on the display, transmit first user interface (UI) information corresponding to a UI related to control of the content to the external apparatus through the communication interface,
• control the display to display a first control UI together with the content based on the first UI information,
• obtain second UI information based on the first UI information and size information of a display of the external apparatus, the second UI information comprising a display location of an element of a second control UI displayed on the display of the electronic apparatus,
• transmit the second UI information to the external apparatus through the communication interface, and
• based on a user input being received through the second control UI, control the display to display a guide UI in an input location corresponding to the user input together with the content and the first control UI, based on a first UI display location of the first control UI, a second UI display location of the second control UI, and input information corresponding to the user input.