【Alarm Clock with Clear Projection on Ceiling】This digital projection clock provide clear views of the time and temperature on your wall with adjustable 180° projector, the best appropriate distance is 1-4 meters. Time and Temperature projected in a soft red colorIt is very convenient to grasp the time while in your bed without touching anything and will not disturb your sleeping in bedroom.【USB Charging Port and Indoor Temperature】 When using the 5V power adapter, the backlit and projection will always light on and it has 1 USB charging port for your other electronic devices, no need to charging your device by using an extra plug. Equipped with professional temperature sensors, the thermometer monitor for house provides most accurate measurements, indoor temperature displayed with time together.【Dual Alarms with Snooze Function】 This projection alarm clock has two separate alarms design which could wake you and your companion up at different alarm time setting, or double waking-up service for you only. Press the SNOOZE button at the top to get extra setting minutes sleep till next loop of this alarm, alarm voive is loud enought for heavy sleeper.【12/24H Time Format Easy to Set up】Our LED digital alarm clock has big setting button let you choose the time format or set other functions. Two alarm clocks are designed with independent shift switches, making it easy to turn on or off the alarm clock and get rid of complex settings.【Automatic Brightness Dimmer and Battery Backup Settings】When using the 5V power adapter, the backlit and projection will always light on. Simply press the snooze button to adjust the 4 brightness mode for backlit (Bright - Medium - Low - OFF). When automatic backlight brightness setting function is enabled, the backlight brightness will be automatically adjusted according to the ambient brightness. Backup batteries CR2032 (included) can backup of your personal clock settings and let your alarm works even during the power outage, so everything will be organized as usual.