Abstract: The disclosure provides a display apparatus and a method. The display apparatus includes a display, a communicator, an external device interface, a memory and a processor. The processor is configured for: receiving a command for adjusting an audio state of an external audio output device in connection with the display apparatus; determining a target audio state to which the external audio output device needs to be adjusted by parsing the command; sending, to the external audio output device, an audio state adjusting instruction for adjusting the audio state to adjust a current audio state of the external audio output device to the target audio state and an instruction for requesting audio state to request the external audio output device to send the target audio state to the display apparatus; receiving the target audio state returned from the external audio output device and displaying the target audio state.