Projects time & outdoor temperature on wall or ceiling in easy-to-read numbers; Projection & arm rotates ; Adjustable projection focus; Wireless in/out temperature; 8 moon phase icons; 12-/24-hour clock with snooze alarm & alarm icon; Calendar, month, day & date; Sits on desktop or tabletop; Battery life is over 24 months when using AC adapter; Includes 5.0V AC adapter ; Alarm requires 3 AAA batteries for backup & Sensor requires 2 AA batteries;