MISUE Sound Control Digital Desktop Clock with Day, Date, Temperature, Alarm ,large Screen digits and Backlight -Black Sound Control-Built in Sound Control Light Sensor,LCD Back light Turns on Automaticaly When make a small sound .and Dont Worry,This Also Wont Disturb the Sleepness REAl Bigger LCD Screen,Energy Saving,Bold Typeface,Clear and Comfortable Visual Sense Technalogy,Make Sure You Can See Exactly the Time Without Troubling Sleep. Adjustable Time and Date Format,Circumstance Temperature Monitoring Function,Make Youself a Easy Life. Alarm Sound Stronger Gradually,Sorftly Wake You Up From Dreams,Special Designed Snooze Function,When You Turn Down The Alarm,It Will Ring Again 5 Minutes Later. Power Source:3 AAA Battery(Not included).LCD Display Size :5.2"*2.1" .Product Size:6.3"*6.2"*1.1"