Samsung Galaxy S III User Manual page 44

• Top microphone: used while an active call is in the speakerphone mode
and assists in noise cancellation (2 microphone solution).
7. Back key redisplays the previous screen or clears entries.
8. Display shows all the information needed to operate your
phone, such as the connection status, received signal
strength, phone battery level, and time.
9. Front Facing Camera allows you to take pictures while facing
the screen and allows you to video conference.
10. 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.
11. 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 decreases the screen brightness to
compensate.
12. Receiver allows you to hear the other caller and the different
ring tones or sounds offered by your phone.
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