Haier A7 User Manual page 12

They are used to turn pages to display characters waiting to be selected in editor.
Browse menu/list with same level.
Browse SMS's content or other long text information.
When pictures are under previewing they are used to select previous/next picture.
When talking they are used to regulate volume to turn up/down volume gradually.
[Left] key and [Right] key:
They are used to move the cursor left/right in the editor.
Browse main menu.
Turn pages when contact list in phonebook is browsed.
When pictures are under previewing they are used to select previous/next one.
During talking short pressing Left key can activate silence mode and press the 2
cancel silence.
During talking short pressing Right key can activate hand free and press the 2 time to cancel
hand free.
[OK] key
It is in the middle of 4 direction keys and another name is middle key. It is the default confirm key.
1.1.2.2 Outer flip control key
There are 5 control keys on the outer flip of the phone: Up/Down/Left/Right/Middle keys. These
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