1.DisplayMode:DP-2:Time/Temperature DP-1:Time,Date,termperature automatically take turns display 2.Calendar:2000-2099                                     3.12/24 hour format selectable                             4 Every time can set up 3 groups of alarm,Each alarm 1 minute,Sound are Bi Bi Bi...                             5  18:00-07:00 half luminance;and 3 luminaance to set(L1-L2-L3)                                                                           6 DC 5V/500MA power supply by USB( or 3*AAA or 4*AAA battery)                  7.Sound control mode