150 page Telememo capacity, EEP ROM memory protection, 8 letter and 12 memo storage capacity, Auto sort function, Password protection, 150 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 arithmetic function (four basics, constants, memory calculations), Countdown alarm, Daily alarm, Auto Calendar, Illuminator backlight Minimize