Hold the button for 3 seconds to rotate the projection 180 degrees. Project on the ceiling or wall in the direction you want. Best projection distance for projecting an alarm clock: 3-5 m. The digital alarm clock supports dual alarms, then two separate alarm times can be set at the same time if you and your partner or children get up at different times. You can select the default buzzer or radio station as the alarm sound. The snooze function allows additional sleep from 5-60 minutes, the default snooze time is 5 minutes. Also, 12/24 hour display is optional. 180 adjustable projector with with 4 brightness levels, high, medium, low or off Alarm clock measures the temperature and humidity of its location and reflects it on the screen. Projection alarm clock with radio function, bring you a nice mood. Style: Modern Material: Plastic Colour: Black Shape: Rectangular Special: Feature Digital Operating mode: Electric Are batteries included: No Alarm clock: YesProducts from GuanGuan's store