2.1 inches digital display 

4 minutes Snooze， ringing crescendo 

12/24 hour conversion 

Calendar display 

Blue LED backlight display 

Temperature display 

Backlight automatically light system， the backlight will turn on automatically at night 

Smart lamp brightness can be adjusted stepless 

Two AA batteries 

Solar powered when the backlight can not be opened 

Size: 143 X 53 X 82.5 MM 

Color: Black / White 

Solar unable storage， use this function only under good light conditions during the day and at night put under the lamp can also be used. No light， can not remember the time.