Instructions for use(If you don't know how to use it, contact me, we also have electronic manuals in other languages) 01 Power Supply and Switch Machine Power Supply:CR2025 button battery(not include Installation:Open the bottom switch, put the battery in the positive side up, and it will automatically turn on after the battery is replaced 02 Time Setting Press the'TIME'key to enter the clock display mode, and the numbers will flash. Press'HOUR'to adjust the hour, Press'MINUTE'to adjust the minutes, Press'ON/ OF'to confirm the set time or set 12/24 hour conversion. 03 Alarm Setting Press 'ALARM' to enter the alarm mode, the screen will display 1, 2, 3, 4 in turn, indicating four groups of alarms. Under any set of alarms: Press 'HOUR' to set the hour, Press 'MINUTE' to set the minutes, Press 'ON/OFF' to turn on the alarm(the alarm symbol will be displayed), Then press 'ALARM' to enter the next group of alarm settings, Press 'TIME' to return to clock mode or automatically return to clock mode after 1minute. 04 Cancel the Alarm Setting Press the 'ALARM' keyto enter the group of alarms you want to cancel, Thenpress 'ON/OFF' to cancelthe alarm symbol, Press 'ALARM' again to enter another group of alarms you want to cancel, If you need to cancel all timings, press and hold the MEMO button for 3 secondsand after hearing a long beep to cancel all settings. Product packaging: 1 x Multi-Alarm Timer Pills Reminder (Not Including battery)