GLOBAL ASSISTIVE DEVICES Vibra LITE 12 Instruction Manual page 6

Note: When using the 12 hour clock, the "PM" indicator will be
displayed in the box at the left side of the screen. If the hour is set
for AM, the box will be empty.
6) Press the "MODE" button. The minute digit(s) will be flashing.
7) Use the "ST/STP" button to set the minutes.
8) Press the "SET/RST" button to save programmed information,
OR to advance to the next alarm, press the "MODE" button while
the minutes are flashing and then press the "ST/STP" button.
Repeat steps 4 through 8.
Note: When setting the times in Alarm Mode, if programming is
interrupted and no button is pushed within 2 minutes, the flashing
will stop and the settings that are shown on the screen will be held. If
no button pushed within 2 additional minutes, screen will return to
Calendar Mode automatically.
Turning Alarms On/Off:
1) Press the "MODE" button until "ALARM" is displayed at the top of
the screen. After approximately two seconds "ALM-01" will be
displayed.