PROJECTION FUNCTION The station with projection (180 rotation) has 3 adjustable projection lighting modes according to your desired angle and brightness. The red numbers projected on the wall or ceiling are very clear. Because it is easy to see the time, sleep is not affected. Optimum Throw Distance: 2-5m.FM RADIO & DUAL ALARMClock radio with adjustable volume (0-15), receiving FM87.5MHZ-108MHZ audio frequency range, meets the use of most countries in the world. FM radio with sleep timer will automatically turn off after specified time (5~90Min). It can set two separate alarm clock times, 2 alarm sounds (Didi-Sound & Radio) with adjustable volume to satisfy different needs, let you have an extra nap (5~60Min).MULTI-FUNCTION DISPLAYThe alarm clock LED displays time (12/24H), temperature and humidity (Convertible F/C), used to identify indoor humidity and temperature. 4 Manual/automatic screen brightness without glare, excellent for the elderly or people with poor vision to read the time. And the screen can also be used as a mirror for home or travel.BATTERY BACKUP & USB CHARGERThe mains powered digital alarm clock and backup battery. With a backup battery, retains the internal time setting to avoid resetting the time in the event of a power outage. The USB port allows you to charge your phone and other devices while you sleep. user. If you encounter any problems during use or need an electronic version of the user manual, please feel free to .