Features: 4 Grids: Can take medicine 4 times a day. 12/24 hour unit exchange. Settable 4 groups of alarm, remind you to take medicines on time. Alarm with beep sound and flashing icons. Snooze Function: miss-alarm reminding. One intelligent MEMO key can set. Portable to carry for work, travel etc. Note: Please set your local time before alarm setting. Snooze Function: when you miss the reminding alarm, it will make sound of didi per 3 minutes in 30 minutes until you press any button to cancel the alarm.