Apparatus for controlling an earphone or a media player in communication with the earphone, and controlling method thereof

An apparatus for controlling an earphone and a media player in communication with the earphone, comprising:

• an ambient sound detector configured to detect an ambient sound volume level;
• a processor configured to select an adjustment value to be applied to an audio volume level to be produced by an earphone speaker of the earphone based on the ambient sound volume level;
• and
• a controller configured to adjust the audio volume level of the earphone speaker based on the adjustment value selected by the processor;
• wherein the processor is configured to generate a first prompt signal when the ambient sound detector detects an ambient sound volume level higher than a threshold level;
• and
• the controller is configured to receive and output the first prompt signal.