Portable multi-function apparatus and controller

A portable multi-function apparatus operable in a camera operation mode and an audio operation mode, the apparatus comprising:

• a main body;
• and
• a controller operatively connectable with said main body for an audio operation and a camera operation thereof;
• wherein:
• said main body includes a detachable first recording medium;
• and
• said controller includes a detachable second recording medium,
• wherein said camera operation mode and said audio operation mode is automatically selected according to whether said controller is engaged with said main body or not.

A controller for operatively associating with a portable multi-function apparatus, which is operable in a camera operation mode and an audio operation mode, with which at least a music data is operated, the controller comprising:

• at least one common operation member operable to perform a first function of the portable multi-function apparatus in the camera operation mode thereof and a second function of the multi-function apparatus, different from said first function, in the audio operation mode thereof;
• and
• an operation signal transmitting output connecting to said common operation member,
• wherein said camera operation mode and said audio operation mode is automatically selected according to whether said controller is engaged with said main body or not.