A portable electronic equipment comprising: a main body configured to be worn on a user's neck, wherein the main body includes a band portion with elasticity that forms a C-shaped curvature configured to contact with the user's neck; a user input unit on the main body, the user input unit allowing the user to control the portable electronic equipment for at least one of controlling an order of multimedia playing, playing/stopping multi-media, adjusting volume, and calling, a sensor configured to sense whether the user is wearing the main body on the user's neck or not; a Bluetooth wireless chipset loaded in the main body and configured to perform wireless communication with a first host media device and a second host media device, wherein the first host media device is a mobile terminal for performing call/multimedia playing and the second host media device is a presentation terminal; and a controller configured to: selectively control the Bluetooth wireless chipset to function as a multimedia or calling device and to perform the wireless communication with the host media devices via a designated Bluetooth profile supported by the host media devices and a function implemented by the host media devices, in response to the sensor sensing the user is wearing the main body on the user's neck, control the Bluetooth wireless chipset to function as a multimedia or calling device and wirelessly communicate with the first host media device in a calling or multimedia playing mode and to output calling audio data or multimedia audio data received from the first host media device, and in response to the sensor sensing the user is not wearing the main body on their neck, control the Bluetooth wireless chipset to function as a remote control for controlling the second host media device. a main body configured to be worn on a user's neck, wherein the main body includes a band portion with elasticity that forms a C-shaped curvature configured to contact with the user's neck; a user input unit on the main body, the user input unit allowing the user to control the portable electronic equipment for at least one of controlling an order of multimedia playing, playing/stopping multi-media, adjusting volume, and calling, a sensor configured to sense whether the user is wearing the main body on the user's neck or not; a Bluetooth wireless chipset loaded in the main body and configured to perform wireless communication with a first host media device and a second host media device, wherein the first host media device is a mobile terminal for performing call/multimedia playing and the second host media device is a presentation terminal; and a controller configured to: selectively control the Bluetooth wireless chipset to function as a multimedia or calling device and to perform the wireless communication with the host media devices via a designated Bluetooth profile supported by the host media devices and a function implemented by the host media devices, in response to the sensor sensing the user is wearing the main body on the user's neck, control the Bluetooth wireless chipset to function as a multimedia or calling device and wirelessly communicate with the first host media device in a calling or multimedia playing mode and to output calling audio data or multimedia audio data received from the first host media device, and in response to the sensor sensing the user is not wearing the main body on their neck, control the Bluetooth wireless chipset to function as a remote control for controlling the second host media device. selectively control the Bluetooth wireless chipset to function as a multimedia or calling device and to perform the wireless communication with the host media devices via a designated Bluetooth profile supported by the host media devices and a function implemented by the host media devices, in response to the sensor sensing the user is wearing the main body on the user's neck, control the Bluetooth wireless chipset to function as a multimedia or calling device and wirelessly communicate with the first host media device in a calling or multimedia playing mode and to output calling audio data or multimedia audio data received from the first host media device, and in response to the sensor sensing the user is not wearing the main body on their neck, control the Bluetooth wireless chipset to function as a remote control for controlling the second host media device.