Projects time onto wall or ceiling (auto-focus) with Adjustable tilting arm (forward/backward) and Rotation (90° Increments) 12/24 Hour time with Calendar (Weekday, Month, Date) or Alarm Time view Adjustable backlight (HI/LOW/OFF); Power-saving backlight (temporary illuminates) when operating on batteries only Ascending alarm with 10-minute snooze; Low battery indicator; 1AMP USB charging port (charge cable not included) Operates with USB-C power cord (power brick, not included) or, optional 2 AAA alkaline batteries (not included)