Soondar Smart Alarm Clock with Snooze Function Rechargeable Alarm Clock with LCD Display Light-activated Sensor Digital Alarm Clock with Date, Alarm, Temperature, Snooze, Night Light 3-group alarms available, you can set different rings for weekday, weekend and nap, much more convenience Smart Light,Built in Light Sensor,LCD Back light Turns on Automaticaly When the Room or Circumstance Becomes Dark.and Dont Worry,This Also Wont Disturb the Sleepness 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 Yourself a Easy Life Power Supply: Recharger battery by a DC 5 V Charger