HCO MB600 - Manual (Page 13)

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When this option is selected, you need to set a Max Num. Max Number defines
the maximum pictures that will be sent within 24 hours. For instance, 20 means
the camera will only send the first 20 pictures within 24 hours regardless of the
actual number of pictures captured that day.
Note: The Max Num. cannot exceed 200 in Instant mode.

CUSTOM: to send the pictures at a user-defined time in one day.
When this option is selected, you need to set Max Num. (same as above in
'Instant') and Send Time. For example, Max Num. 10 and Send Time 18:30,
the camera will send the first 10 pictures taken in that day at 18:30.
Note: The Max Num. cannot exceed 50 in Custom mode.

DAILY REPORT: to send a SMS (text message) report at a user-defined
time. The report includes total picture/video number captured during the
past 24 hours, the battery level and remaining storage space.