A wearable device comprising: a display (212; 311; 413,414; 502, 503; 4830; 4931) for outputting an image; an audio output unit (215, 216, 4970) for outputting audio; a user input unit (207; 408; 504; 4840; 4932) for receiving a command of a user of the wearable device; a communication unit for communicating with an external device; and a processor (4820, 4920); wherein, when operating with a first external device and second external device, the first external device configured to reproduce content, the wearable device is configured to: output a received image and audio of the reproduced content through the display and the audio output unit (215, 216) of the wearable device respectively, determine whether to stop reproducing the content while outputting the image and the audio of the content, display content reproduction stop request guide information if reproduction of the content is stopped, in response to receiving a content reproduction stop request, transmit, to the first external device, a content reproduction stop request signal, while the image and audio is stopped, display guide information regarding different content, if a request to reproduce the different content is received, transmit, to the second external device, a reproduction request signal for the different content. a display (212; 311; 413,414; 502, 503; 4830; 4931) for outputting an image; an audio output unit (215, 216, 4970) for outputting audio; a user input unit (207; 408; 504; 4840; 4932) for receiving a command of a user of the wearable device; a communication unit for communicating with an external device; and a processor (4820, 4920); wherein, when operating with a first external device and second external device, the first external device configured to reproduce content, the wearable device is configured to: output a received image and audio of the reproduced content through the display and the audio output unit (215, 216) of the wearable device respectively, determine whether to stop reproducing the content while outputting the image and the audio of the content, display content reproduction stop request guide information if reproduction of the content is stopped, in response to receiving a content reproduction stop request, transmit, to the first external device, a content reproduction stop request signal, while the image and audio is stopped, display guide information regarding different content, if a request to reproduce the different content is received, transmit, to the second external device, a reproduction request signal for the different content. output a received image and audio of the reproduced content through the display and the audio output unit (215, 216) of the wearable device respectively, determine whether to stop reproducing the content while outputting the image and the audio of the content, display content reproduction stop request guide information if reproduction of the content is stopped, in response to receiving a content reproduction stop request, transmit, to the first external device, a content reproduction stop request signal, while the image and audio is stopped, display guide information regarding different content, if a request to reproduce the different content is received, transmit, to the second external device, a reproduction request signal for the different content.