Samsung SPH-M840UWABST - Manual (Page 24)

• Volume Key : From the Home screen, press to adjust
master volume. During calls or media playback,
press to adjust volume. Press to mute the ringtone of
an incoming call.
Side Views
• Memory Card Slot : Install an optional memory card
(not included) for additional file storage.
• Camera Key : From an unlocked screen, press and
hold to launch the Camera. In Camera, press to take
a picture or record video.
2A. Device Basics 15