Wake-up Light Dawn and Dusk Simulator - without UV: Gradually brightens from 10 percent brightness to 100 percent at the scheduled time (10-60 minutes), mimicking the sunrise waking you up to welcome a refreshed day adjustable by 10-120 minutes before sunset time, then the light brightness is gradually decreased, finally the light turns off at sleep time. We have prepared if you need the operation video. Alarm Clock Radio with 7 Natural Sounds: 7 natural sounds (birdsong, ocean waves, streams, beep, windbell, soft music and piano music) and FM radio, volume can be adjust (0-16 level). Long press the "FM Radio" button for 2 seconds and it will automatically start and scan all 87.5-108MHz frequency stations. You can manually choose the favorite from the saved channels for alarm clock sound and sleep aid. Two Alarm Clocks and Repeat "Snooze" function: The improved alarm clock with 2 alarms: one for you and one for your family One for working days and one for weekends. when the alarm rings, the snooze function will give you 9 minutes more sleep, and ring again after 9 minutes (up to 5 times) and last for 15 minutes. The 12 or 24 hour mode and the brightness of the time display (3 Brightness: high, low and OFF (time not displayed). Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.