Denwa Communications DW-820 User Manual page 88

1) Click ;
2) Click ;
3) Input the time of alarm;
4) If you want to repeat the alarm in some days of a week, please click "REPEAT";
5) You can choose the ringtone of the alarm.
5.19.1.1 Enable/Disable Alarm
You can click ON/OFF to enable or disable the alarm.
Note: If power off the phone, the alarm will also be off.