Vivitar ViviCam 8400 Owner's Manual page 10

a.
Important: It is important that the battery cover be sealed
properly before using the camera underwater.
Note:
 As this is a special underwater camera, all the buttons can rotate.
 We strongly recommend downloading your photos and videos regularly to your
computer.
 Remove the batteries from the camera when not in use for an extended period.
 Do not mix alkaline and non Alkaline batteries.
 There are a few features that will not work if the battery power level is low.
 When the battery power is low the battery icon turns red and the camera will
automatically turn off a few seconds later.
b.
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c.