Multiple Functions: Color weather forecast; Indoor/Outdoor thermometer and hygrometer; MAX/MIN temperature and humidity display; Air pressure; Moon phase; Daily alarm and snooze function; 3-level backlight selection with USB cable, more economical and practical Clock and daily alarm function: Manual time setting; Time also optional 12/24; Easy to turn on/off daily alarm with snooze function Weather forecast function: With wireless outdoor sensor (within 197 feet) and with 7 color icons; Weather icons indicate weather fluctuations in the next eight hours, not the current weather Thermometer, Hygrometer and Barometer Function: Display in either °C or °F. Min/Max display for humidity and temperature, air pressure trend display; and the outside ice warning icon when the outside temperature is 30 °F to 37 °F. A practical household appliance. Power supply: Powered by 2 AA batteries (not included) or USB cable (included). You can select 3 backlight levels by pressing the SNOOZE button when