Casio - DBC3101

300 page Telememo capacity, EEP ROM memory protection, Auto sort function, Password protection, 300 pages of schedule memo, 11 letter message capacity with auto sort, Memory shared between Telememo and Schedule-memo, World time with 24 time zones and daylight savings on/off, 8 digit calculator, 8 digit arithmetic function (four basics, constants, memory calculations), Countdown alarm, Daily alarm, Auto Calendar, Illuminator backlight