Features:

• Loud 100 dB ascending alarm that spans multiple frequencies so even if you have high frequency hearing loss you won't miss the alarm
  
• Alarm timeout 20 minutes
  
• Powerful bed shaker (does not emit sound - see the Alarm Clock Pro or Alarm Clock Visit)
  
• "Smart" snooze automatically reduces in time from 9 to 2 minutes in two minute intervals so you don't miss that important meeting
  
• Large LCD display with adjustable backlight
  
• Battery backup powers all functions during a power outage including bed shaker (4 AAA rechargeable batteries not included)
  
• 12/24 time format
  
• Dimensions: 4.7" W x 4.3" H x 3.6" D
  
• Weight: 13.7 oz; 390g including batteries