Samsung SGH-S730G User Manual Ver.f9 (English) - Page 27

11. 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. 12. 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. 13. Receiver allows you to hear the other caller and the different ring tones or sounds offered by your phone. Back View The following illustration shows the external elements of your device: 1 2 Understanding Your Device 23