Mobile device, head mounted display and method of controlling therefor

The present specification relates to a mobile device, a head mounted display (HMD) paired with the mobile device and a method of controlling therefor, and more particularly, to a method of providing a notification for an occurrence of an event from at least one of the mobile device and the HMD based on a position of the mobile device for the HMD. According to one embodiment, a mobile device includes a display unit configured to display content, a sensor unit configured to detect an input signal and transmit the detected input signal to a processor, a communication unit configured to transmit and receive a data, a camera unit configured to capture an image in front direction, and a processor configured to control the display unit, the sensor unit, the communication unit, and the camera unit, wherein when the mobile device is paired with a head mounted display (HMD) and an event to which a notification to be provided occurs, the processor is further configured to receive a location information from the HMD, whe