Apple iPad iOS 4.2 - Manual (Page 9)

Volume Buttons
Use the volume buttons to adjust the audio volume of songs and other media, and of
alerts and sound effects.
Volume
up
Volume
down
Silent
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 Slide the Silent button up to mute the sound; slide it down to
unmute the sound.
WARNING: For important information about avoiding hearing loss, see the iPad
Important Product Information Guide at support.apple.com/manuals/ipad.
Micro-SIM Card Tray
The micro-SIM card, located on the side of iPad Wi-Fi + 3G, is used for cellular data.
It’s also known as a third form factor (or 3FF) SIM. If your micro-SIM card wasn’t
preinstalled or if you change cellular data carriers, you may have to install or replace
the micro-SIM card.
Micro-SIM card
SIM
eject tool
SIM
tray
Open the SIM tray:
1 Insert the tip of the SIM eject tool into the hole on the SIM tray.
Press firmly and push the tool straight in until the tray pops out. If you don’t have a
SIM eject tool, you can use the end of a paper clip.
2 Pull out the SIM tray to install or replace the micro-SIM card.
9 Chapter 1 At a Glance