LED Large Display & 4 BrightnessOur digital alarm clock has a large LED display, a stylish design and good readability. Digital alarm clock with date display, temperature and humidity display and time display (12/24HR). There are 4 optional brightness levels, allowing you to choose the brightness as you like. 180° Rotating projection alarm clockThe alarm clock with projection has an adjustment angle of 180. designed, you can also rotate the projected display to the correct angle if necessary, so you can read the time on the wall or ceiling comfortably in bed, and you can adjust the display brightness, it won't bother you or your children disturb while sleeping.Optimal projection distance (0.5-5 m). Alarm clock with snooze functionOur projection alarm clock has 3 working day modes: 1-5 (Monday-Friday), 1-6 (Monday-Saturday), 1-7 (Daily). This could wake you and your companion at different alarm times. Adjustable brightness and night mode The LED display of the digital alarm clock offers 4 brightness types: Low, Medium, High, Off . You can freely choose the brightness. In night mode, the digital alarm clock automatically switches to low light from 6:00 p.m. to 5:59 a.m. (default setting). You can adjust the time interval of night mode according to your needs. USB charging port & Storage functionThis LED mirror alarm clock with 5V USB output interface, so you need to connect a USB cable to use. Backup memory battery (included) just alarm clock time working to stay normal and remember the original time/alarm/snooze settings, no need to reset while in case of power outage.