a display;

a speaker;

a communicator, comprising communication circuitry, configured to perform wireless communication;

a memory configured to store one or more instructions; and

a controller, comprising at least one processor configured to execute at least one of the one or more instructions,

wherein the communicator is further configured to:

in response to a wireless connection request being received from an external device while the controller is in a first power state in which the display is in a screen-off state, transmit, to the external device, a response indicating acceptance of the wireless connection request to establish a first wireless connection with the external device in the first power state; and

transmit, to the controller, information associated with the external device, and

control to switch a power state from the first power state to a second power state, wherein, the first wireless connection with the external device is disconnected in response to switching the power state of the controller from the first power state to the second power state, and

the controller is further configured to control the communicator to establish a second wireless connection with the external device using at least information associated with the external device.