Life-Sport Digital Smart Desk Shelf Alarm Clock Battery Operated with Day,Date,Temperature for Bedroom,Living Room,Home and Office 5 Colors. (green) Display:Large LCD displays time,calendar,temperature,alarm status Smart Light:Built in Light Sensor,LCD Back light Turns on Automaticaly Sound:Sorftly Wake You Up From Dreams, Power:3 AAA Battery(Not included).Notice:No Radio Function. Others:Soft blue and white backlight.Adjustable Time and Date Format,Circumstance Temperature Monitoring Function,Make Yourself a Easy Life