-Long Bright Mode
When the external power supply is supplied, the time and temperature display will remain bright.
-Sleep ModeWhen the lithium battery is powered, when the alarm is left for 10 seconds, it will enter the sleep mode, and the sound can be controlled to display the alarm.
-Lithium Battery Is More ConvenientThere is no need to reset the time when switching power.It Can be used for external computer, adapter (within DC5V) power supply. The charging prompt will flash when the remaining 20% of the alarm is turned off, and will remain bright when entering the charging state, and will automatically turn off when fully charged.