See what time it is on the ceiling or wall without having to get out of bed. Projects time only with adjustable in 90-degree rotation to set projection the way you want it. 12 or 24hr manual set time and displays the room temperature (F/C) and humidity (%RH.) Adjust your view from a calendar date or full weekday display. Also can adjust brightness settings for the backlight. Use included AC adapter to operate, but optional backup requires (not included) 2 AAA batteries.