Samsung Galaxy S II Online User's Manual page 69

Sound
Volume
Set the system volume level, and set default volume for
call ringtones, notifications, and media playback.
1.
Press and tap
.
Volume
2.
Touch and drag the sliders for:
Music, video, games, and other media
default volume level for audio playback. You can
also adjust volume inside the apps.
: to set the volume for incoming calls.
Ringtone
: to set the volume for notifications,
Notifications
such as new messages and event reminders.
: to set the volume for all other system
System
sounds, such as keytones played for screen
touches. You can control whether tones play for
screen touches with other sound settings.
3.
Touch to save your settings.
OK
> Settings > Sound >
: to set the
Vibration intensity
Set the level for vibration to accompany ringtones and
notifications.
1.
Press and tap
.
Vibration intensity
2. Touch and drag the sliders for:
: to set the vibration level for
Incoming call
incoming call ringtones.
Notification : to set the vibration level for
notifications, such as new messages and event
reminders.
Haptic feedback : to set the vibration level
vibrations to accompany screen touches.
3. Touch to save your settings.
OK
> Settings > Sound >
2C. Settings 54