Intelligent Sunrise / Sunset Simulation Just set the alarm time, the Sunrise simulation light will gradually increase from 10% to 100%. Light color change from soft red to bright sunlight. Before going to bed, the light accompanying the music will gradually dim from 100% to 0%, providing you with a raw sleeping environment to help you improve your sleep quality (time 10-120 minutes). 98% of users found it easier and comfortable to get up in the morning with this sunrise alarm clocks. Dual Alarm Clocks & Snooze FunctionWeekdays/holidays, or do you/your partner need a different alarm time? Don't worry, you can use the two alarm buttons on the alarm clocks to set two different alarm times. The snooze function will provide you with 9 minutes (up to 5 times) of extra time, providing you with a buffer time and avoiding excessive sleep. An instruction manual is included in the package of sunrise alarm clocks. If you need to operate the video, please contact us. 7 Natural Sounds & FM Radio You can even enjoy 7 wonderful natural sounds (birds, waves, streams, beeps, wind chimes, soft music and piano music) and FM radio, 0-16-level volume control. In addition, long press the "FM Radio" button for 2 seconds, wake up light will automatically scan and store up to 40 MAX radio stations, and you can select the desired radio station. Also can set the FM as alarm bell to wake up or sleeping aid sound. Please note: spreading the wires will improve signal. 7 Colors LED Light & 20 Brightness 7 colorful atmosphere lights, you can choose color or color cycle, to provide you with a comfortable atmosphere. You can use it for different occasions such as bedside lamps, reading lamps or ambient lamps, and the brightness can be adjusted between 1-20 levels. Tips: Please read the manual carefully before using it; and there are also a set of stickers provided, one can stick on the clock to understand which button is which.