Four Program Periods (Morning, Day, Evening, and Night). The time and temperature can be set for each period. The default program parameters conform to Energy Star guidelines and are a good place to start. * Battery powered, no control wiring needed. Runs on 2-AA batteries (4-included). Can operate continuously for approximately 18 months with all 4-AA batteries installed. * Kick-Stand design permits the thermostat to stand on a flat surface such as a table or shelf in the event that permanent mounting to a wall is not desired. * RF technology means flexibility. Radio Frequency technology used to allow the KWW to communicate with the included KCM; this is on a 900MHz band. * Large Blue Backlight Screen. Easy Push Button Adjustments. Degree Fahrenheit and Celsius Selection Button. Utility Demand Response capable -- interface to any building automation system. * Battery powered, no control wiring needed; Runs on 2-AA batteries (4-included); Can operate continuously for approximately 18 months with all 4-AA batteries installed * Four Program Periods (Morning, Day, Evening and Night); The time and temperature can be set for each period; The default program parameters conform to Energy Star guidelines and are a good place to start * Kick-Stand design permits the thermostat to stand on a flat surface such as a table or shelf in the event that permanent mounting to a wall is not desired * Large Blue Backlight Screen; Easy Push Button Adjustments; Degree Fahrenheit and Celsius Selection Button; Utility Demand Response capable interface to any building automation system * RF technology means flexibility; Radio Frequency technology used to allow the KWW to communicate with the included KCM; this is on a 900MHz band