Samsung SGH-T989 User Manual (user Manual) (ver.f5) (English(north America)) - Page 26

2. Volume key allows you to adjust the ringer volume in standby mode (with the phone open) or adjust the voice volume during a call. When receiving an incoming call: • Pressing the volume key down mutes the ring tone. 3. microSD Card Slot (internal) allows you use a microSD card to expand the memory of your phone. 4. Menu key displays a list of options available for the current screen. From the Home screen it displays Add, Wallpaper, Search, Notifications, Edit, and Settings options. 5. Home key displays the Home screen when pressed. 6. USB Power/Accessory connector allows you to connect a power cable or optional accessories such as a USB/data cable. 7. Quick search is used to search the device for applications, contact information, or searches the internet for information. 8. Back key redisplays the previous screen or clears entries. 21 9. Display shows all the information needed to operate your phone, such as the connection status, received signal strength, phone battery level, and time. 10. Power/End key ends a call or switches the phone off and on. Press and hold for two seconds to turn off Silent mode, Flight mode, or to turn the phone on or off. 11. Headset jack allows you to connect a hands-free headset so you can listen to music. 12. 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. 13. Receiver allows you to hear the other caller and the different ring tones or sounds offered by your phone. 14. 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.