Digital Alarm Clock/Travel Alarm Clock/Home Alarm Clock with Large Display, Snooze Function, Date and Temperature Display, Low Light Sensor Technology, Progressive Wake Alarm LCD Screen, Energy Saving, Bold Typeface, Clear and Comfortable Visual Sense Technology Smart Light, Built in Light Sensor, LCD Back light Emits Soft light, Automaticaly When the Room or Circumstance Becomes Dark 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 Adjustable Time and Date Format, Circumstance Temperature Monitoring Function, Make Youself a Easy Life Power Source:3 AAA Battery(Not included). Notice:No Radio Function