18
1.
Proximity Sensor
detects how close an object is to the
surface of the screen. This is typically used to detect when
your face is pressed up against the screen, such as during
a phone call.
–
While talking on the phone, the sensor detects talk activity and locks the
keypad to prevent accidental key presses.
2.
Light Sensor
lets you use the ambient light level to adjust
the screen brightness/contrast. This sensor decreases
screen brightness in dim light.
•
In a bright light condition (outdoors), the sensors cause the device
to increase the brightness and contrast for better viewing.
•
In dim light conditions, the device increases the screen brightness
to compensate.
3.
Volume key
allows you to adjust the ringer volume while in
standby mode or adjust the 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 or using the browser in the
Applications folder.
4.
Power/Accessory Interface connector
: allows 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.
5.
Microphone
is used during phone calls and allows other
callers to hear you clearly when you are speaking to them.
It is also used to make voice note recordings.
6.
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
7.
3.5mm Headset jack
: allows you to plug in headphones.
Rear View of Your Phone
1
3
2
