TIME TEMPERATURE PROJECTION: Perfect alarm clocks for bedrooms. The projected temperature changes from indoor temperature to outdoor temperature automatically. Alarm clock projected in a soft red color on wall, it is very clear to view but will not disturb you or your kids when sleeping. The suggested distance of projection on ceiling or wall is 5 ~ 13 ft (1.5 ~ 4 m). Press the "-" button and hold it down for about 3 seconds the projection image will flip 180.DUAL ALARMS WITH SNOOZE FUNCTION: Set two separate alarms for different purposes on this projection clock. With snooze function, this alarm clock allows you to get extra five minutes sleep time. Press any button except the top button to stop the alarm, and the alarm will automatically stay on for next day. The alarm will automatically turn off if left alone for 2 minutes.LARGE NUMBER DISPLAY WITH 8-COLOR CYCLE CHANGES: Large number displayed on LCD with wireless inside outside thermometer. Simply press the - button to adjust the backlit's to 4 brightness mode, high - medium - low - out. Choose your favorite color for the backlit by using Loop and Rainbow function.BATTERY BACKUP AND USB CHARGING: AC powered for permanent projection and time display, battery ensures the memory of all settings during a power outage. 5V/ 1.2A USB output interface of this bedside alarm clock allows you to charge your smart phones or other devices.COMPACT DESIGN: The projection alarm clocks for bedrooms can predict the weather for the next 12 hours as well as the barometric pressure trend and temperature trend; 12/24 hour, date, and week which are all displayed on the 3 backlit LCD screen. The projection clock, a wireless sensor and AC adapter are all included in the box, making it a perfect choice or an ideal travel companion.