Apple iPad For iOS 4.3 - Manual (Page 11)

You can use the iPad Smart Cover, available separately, to automatically unlock
iPad 2 when you open the cover and lock iPad 2 when you close it. See “iPad Cover
Lock/Unlock” on page 158.
Volume Buttons
Use the volume buttons to adjust the audio volume of songs and other media, and of
alerts and sound effects.
Volume
buttons
Side
Switch
Increase the volume Press the Volume Up button. To set a volume limit for
music and other media, in Settings, choose iPod > Volume
Limit.
Decrease the volume Press the Volume Down button.
Mute the sound Press and hold the Volume Down button to mute audio or
video playback.
Suppress notifications and
sound effects Slide the Side Switch down to mute notifications and
sound effects. This switch doesn’t mute audio or video
playback. See “Sounds” on page 156.
You can also use the Side Switch to lock the screen rotation. In Settings, choose
General > Use Side Switch…, then tap Lock Rotation. See “Side Switch” on page 160.
WARNING: For important information about avoiding hearing loss, see the
iPad Important Product Information Guide at support.apple.com/manuals/ipad.
11 Chapter 1 At a Glance