Exemplary embodiments disclose a display apparatus, a display system, and a control method thereof, the display apparatus including: an image processing device configured to process an image signal; an audio processing device configured to process an audio signal; a communication device configured to conduct wireless communication with a peripheral and configured to transmit the audio signal processed by the audio processing device to an audio output device; and a controller configured to operate in a discoverable mode for wireless communication access of the communication device, and configured to control the communication device to conduct pairing of the audio output device configured to transmit a preset message and the display apparatus for the wireless communication, when the preset message is received from the audio output device.