General description The Digital Projector Alarm Clock features a unique rotating projection function that allows you to project the time onto your ceiling or wall, making it easy to read from a distance of 3-5 meters. The large red projected numbers are particularly suitable for individuals with myopia, ensuring visibility at night. Technical specifications Power supply: 2 AAA batteries (not included) or included charging cable Temperature display range: -9 to +50 degrees Celsius Display options: Time, date, dual clock, temperature Usage Set two alarms for different users with the dual alarm function Snooze function allows for an additional 5 minutes of sleep before the alarm sounds again Adjustable brightness with 4 modes: high light, medium light, low light, and off (when powered by DC) Backlight brightness remains high for 8 seconds when powered by batteries