Samsung Galaxy S II Online User's Manual page 25

Phone Back View
3.5mm
Headset Jack
Power/Lock
Button
External
Speaker
Microphone
Charger/
Accessory Jack
3.5 mm Headset Jack
optional headset for convenient, hands-free
conversations.
the incorrect jack may damage the device.
Power/Lock Button
or turn off the touchscreen display.
When the screen is turned off, press once to
Camera
return to Screen lock mode.
While the device is unlocked and not on an active
Volume
call, press and hold to display the Phone options
Buttons
menu (Power off, Data network mode, Airplane
mode, Restart and Sound modes).
External Speaker
Flash
and sounds. You can mute the ringer when receiving
incoming calls by pressing the volume button. The
speaker also lets you hear the caller's voice in
speakerphone mode.
Charger/Accessory Jack
phone charger or a USB cable (included).
Inserting an accessory into the incorrect jack may
damage the device.
Microphone
when you are speaking to them.
allows you to plug in an
Inserting an accessory into
CAUTION!
lets you turn the device on or off,
lets you hear the different ringers
allows you to connect the
allows other callers to hear you clearly
2A. Device Basics
CAUTION!
10