A mobile phone capable of coupling to a wireless external device and a wired external device, the mobile phone comprising: a built-in speaker; a built-in microphone; a wireless communication unit configured to wirelessly connect with the wireless external device including a speaker and a microphone; a socket configured to couple with the wired external device being one of a first device including a speaker, but not including a microphone, and a second device including both a speaker and a microphone; and a controller configured, in response to a call connection event, to: when the first device is coupled with the socket, obtain an audio input via the built-in microphone; when the second device is coupled with the socket, obtain an audio input via the microphone of the second device; and selectively obtain, when the mobile phone is coupled with both the wireless external device and the second device, an audio input from one of the microphone of the wireless external device and the microphone of the second device, wherein the controller is further configured, in response to a call connection event, to select one of the wireless external device and the first device and provide an incoming voice signal received via the call connection event to the selected one of the wireless device and the first device, when the mobile phone is coupled with the wireless external device and the first device. a built-in speaker; a built-in microphone; a wireless communication unit configured to wirelessly connect with the wireless external device including a speaker and a microphone; a socket configured to couple with the wired external device being one of a first device including a speaker, but not including a microphone, and a second device including both a speaker and a microphone; and a controller configured, in response to a call connection event, to: when the first device is coupled with the socket, obtain an audio input via the built-in microphone; when the second device is coupled with the socket, obtain an audio input via the microphone of the second device; and selectively obtain, when the mobile phone is coupled with both the wireless external device and the second device, an audio input from one of the microphone of the wireless external device and the microphone of the second device, wherein the controller is further configured, in response to a call connection event, to select one of the wireless external device and the first device and provide an incoming voice signal received via the call connection event to the selected one of the wireless device and the first device, when the mobile phone is coupled with the wireless external device and the first device. when the first device is coupled with the socket, obtain an audio input via the built-in microphone; when the second device is coupled with the socket, obtain an audio input via the microphone of the second device; and selectively obtain, when the mobile phone is coupled with both the wireless external device and the second device, an audio input from one of the microphone of the wireless external device and the microphone of the second device, wherein the controller is further configured, in response to a call connection event, to select one of the wireless external device and the first device and provide an incoming voice signal received via the call connection event to the selected one of the wireless device and the first device, when the mobile phone is coupled with the wireless external device and the first device.