Samsung GALAXY S4 Cell Phone User Manual


 
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Side Views of Your Phone
2. Power/Lock key: ( ) lets you power your
phone on and off. Also allows you to lock or unlock the
touch screen. For more information on locking your
phone, see “Locking and Unlocking the Phone” on
page 36.
3.
Volume keys
: allow you to adjust the ringer volume
while in standby mode or adjust th
e voice volume
during a call. When receiving an incoming call, briefly
press down either volume key
(
) to mute
the ring tone. Adjusts text size when reading a
message.
4.
Shutter button
: From a Home page, press and hold to
launch the Camera. From the Camera view finder
screen, press to take pictures.
5. Power/Accessory Interface connector: allo
ws you to
connect a Travel Charger or other optional accessories
such as a USB/data cable or a hands-free headset for
convenient, hands-free conversations.
6.
Microphone
: allows other callers to hear you when you
are speaking to them. It is also used for the
1.
Infrared Blaster
: Used to emit infrared signals used for
controlling external devices.
Fo
r more information,
Speakerphone.
refer
to “WatchON” on page 223.
Understanding Your Phone 18