Rotating Projection&Adjustable Projection BrightnessThe arms of this digital clock rotate 180 degrees to achieve optimal positioning.Press "Projection" to display the time number in red. Press "Projection" again to dim the projection brightness by 50%.Press "Projection" again to turn it off(the effective projection distance is more than 5 meters and the proper distance is 3 meters).When the projection is on,Long press the "Projection" key to rotate the projection on 180 degress. Large Led Mirror Display&Adjustable BrightnessThe digital alarm clock features a large screen and the big numbers of 3.5*1.5 inches make it easy to read in the dark, even if you are not very awake or not wearing glasses. HD mirror display can reflect your beauty, you can also use it as a mirror while checking the time, to prepare for your makeup.It allows you to adjust the brightness of the facial display and projection display separately, with 3 levels of brightness to adjust. Charge Usb Ports&Memory FunctionThis alarm clock includes a 5V/2A USB output interface, when the clock occupies an outlet, you can still charge your phone or other mobile devices.When there is an unexpected power outage, the button battery built into the alarm clock can automatically save the time and alarm settings (without displaying the timeand the alarm won't go off), and there is no need to reset after power is restored. Dual Alarms Setting&Snooze Function -You can either set one or two alarms to better wake you up,especially handy for who need different schedules. When the alarm time is up,press any key to stop ticking,or it stops automatically after ticking for 1 minute,the alarm will also be displayed.When the alarm is ticking,press"snooze" to pause ticking.Once snooze is started(extra 5~60 minutes nap),then alarm icon will flah.The ticking stops by pressed any key,then snooze stops. Multifunctional Display& Easy To Use Our alarm clock can display time, day of the week, real-time temperature,date, you have the choice between standard time and military time to satisfy your reading time habits. The control buttons of this digital clock are conveniently arranged along the top of the case and clearly marked with easily understandable icons, making it suitable for kids, seniors or the elderly to operate.