【Sunrise / Sunset Simulation】 In sunrise mode, the wake up light simulates sunrise gradually changes to the maximum brightness (from dark red to bright yellow), guiding you to wake up naturally. In sunset mode, the light simulates sunset gradually goes off from maximum brightness, or music rings simultaneously at the maximum volume and then fades away, guiding you into a peaceful sleep. 【7 Colors Atmosphere / Night Light】The LED light can be used as bedside lamp (white light) or ambient lamp (colored light). Atmosphere lamp can automatically change the color of the light, or fix a single color. There are 30 levels of brightness for your needs. 【Customizable Alarm Clock】 3 alarm modes (light+music / light / music wake up), 9 alarm sounds (custom recording sound, natural sound of beep/bamboo tapping/bird/soft music/piano/ocean/rain/sea wind) , 15 volume levels. With one button to turn the alarm on or off, the snooze feature allows for 5 minutes of extra sleep. 【FM Radio Clock】 The radio clock just support automatic radio search and play audio from 76-108MHz, you can save up to 40 channels for quick and easy access next time. 15 volume levels are available. 12 meter antenna is attached for better signal reception. 【LED Clock / USB Charging】 LED digital alarm clock with 3 adjustable dimming level (Off / Low / High) that you can set the brighter light in daytime and dimmer at night. Support 12H/24H time system. DC powered, button battery (included) only backup time, radio search and alarm setting when power outage.