In order to simplify operation of the button (13), the casing (1) is preferably fitted with a rotatable ring (15) which has a control surface (16) associated with the button (13).

The user may switch from one screen to another by pressing the control command plus the corresponding numerical key.

When the user holds a cellular phone with the side of a first switch key (8) in front of the user, the user is to press the first switch key (8).

When the user holds the cellular phone with the side of a second switch key (9) in front of the user, the user is to press the second switch key (9).

Said contact element can be actuated directly by the operating rocker button (1), or by the operating rocker button (1) by means of a transmission element (2).

At least one camera function control button (401-d) is mounted to said camera housing (12) and electrically connected to said camera signal unit (30) to control internal or external functions.

2 (Delete) button t desired mode t z on the control button

The invention relates to a switch comprising an operating rocker button (1) and at least one contact element (15) which can be actuated by a radial deflection of the operating rocker button (1).

Wait three seconds and then release the Control button.

An apparatus receives key mode and input data generated by a user's operation of its keys.

When the second switch key (9) is pressed by the user, the CPU (100) makes a display image to be displayed such that the display direction is in a second direction where the second switch key (9) is at the bottom.

When the first switch key (8) is pressed by the user, a CPU (100) makes a display image to be displayed such that the display direction is in a first direction where the first switch key (8) is at the bottom.

Simply pressing / acts like a command key; it opens the chat with a / in it.

#7 Use Key Command to delete your browsing history

The keys generating the input data can be shared to generate different data depending upon how the key mode data is set by a mode key.