The Kidde FIREX Carbon Monoxide Alarm Plug-In Detector 2 Pack KN-COB-DP2 is a reliable and essential home safety product. With a 10-year manufacturer warranty, this white carbon monoxide detector features a battery backup for continuous protection during power outages. It is compatible with Amazon Alexa for smart home integration and operates on both batteries and wall plug-in power sources. The unit includes 2 batteries and is designed to provide peace of mind for families in the event of a carbon monoxide emergency.