【Ceiling Projector Alarm Clock】At night, the ceiling projection alarm clock projects a 180-degree rotating HD image onto the wall or ceiling. You can wake up in the middle of the night and see the time with your eyes open. Even during the day, the time is projected clearly in red onto the ceiling. 【FM Radio and Smart Alarm Clock】During the day, the digital alarm clock will start your day with its dual alarm and SNOOZE function, then use the alarm clock to automatically search and store channels to keep up to date with the news. 【4 Screen Brightness Levels and 3 Projection Brightness Levels】The screen of the alarm clock has 4 adjustable brightness levels, which allows you to control the brightness of the projection alarm clock screen at will (which can be turned off) to avoid disturbing your sleep. In addition, the digital alarm clock radio projector has 3 adjustable brightness levels, which allows you to turn off the ceiling projection when you don't need the projection time.