GLOBAL ASSISTIVE DEVICES VibraLITE 2 Instruction Manual page 11

TO STOP THE STOPWATCH, press the START/STOP button.
Pressing the START/STOP button again will start the stopwatch
running from where it last left off. The Stopwatch can count up to 23
hours, 59 minutes and 59.99 seconds.
To RESET the stopwatch to zeros, press the LAP/RESET button,
when it is in a stop position.
Split Timing on Stopwatch
1. Start the Stopwatch by pressing the START/STOP button. The
stopwatch will start keeping time.
2. Press the LAP/RESET button. The watch will continue counting
the time even though you do not see it on the display. The Icon at
the top of the display will continue to flicker to show action and that
counting continues.
3. Press the LAP/RESET button again and the display will change
and show the time that has accumulated in total.