Offers 10 years of worry-free protection against fire with voice warnings and intelligent sensor technology. NOTE: Cannot ship to AK, HI, PR, or Catalina.\Features\ - 120 VAC w/ sealed lithium battery\ - Electrochemical sensor\ - 85 dB at 10 ft\ - 5 1/2" x 1 3/4"\ - 1 lb\ - 10-year warranty\ - 1/Each Model Number: i12010SCO|UOM:EA