2 large compartments for pillsSet timer for up to 20 hoursAlarm setting period can repeat multiple timesPowered by one button cellThe Operation of Setting Time as Follows:1. Install the Button cell2. The screen will show a sparkling 12:00 3. Press M for the number of minutes and H for the number of hours toset the present local time. Confirm it by pressing st/sp4. Press H AND M are the same time to Set the timer.Also Press M for the number of minutes and H for the numberof hours to set the time. Confirm it by pressing st/sp5. To check the Setting， press H for 5 Seconds and you will see the condition of the time you just set.Packaging DetailsUnit Type:piecePackage Weight:0.080kg (0.18lb.)