The light reminds you when it is time to stand up.  Green = OK Orange = It is time to stand up Set individual goals or deactivate reminder The default setting is a reminder after 55 minutes sitting. Set your goal Interval 1: Reminder after 55 minutes sitting Interval 2: Reminder after 50 minutes sitting Interval 3: Reminder after 45 minutes sitting Interval 4: Disable reminder Change the interval by pressing the “bell” button. How to reset the LED Press and hold the “bell” button for 8 seconds until the LED flashes red.   Read more