prompt:
LED alarm clock need to plug in use, (non-charging, non-battery-powered)
Alarm clock is equipped with a battery box (battery to be self-contained), if there is a frequent power outage area, can be installed when the battery power failure time and alarm clock, even if the power outage, the alarm will ring, re-call directly after the correct time Adjust the time; not frequent power outages, do not need to install the battery, and occasionally power outages, the time will be restored to the factory default and flashing, re-adjust the time can be (Note: the battery does not change for a long time, will be easy to damage)