Google Nest Protect Smoke Alarm and Carbon Monoxide Detector, 2-pack

Google Nest Protect Smoke Alarm and Carbon Monoxide Detector, 2-pack Features: Wired Version Includes AC 120V Connector Battery Powered Version - 6 Batteries Included Split-Spectrum Smoke Sensor Detects Fast and Slow Burning Fires Speaks to You and Sends Alerts to Your Phone Requires Wifi 2.4GHz Connection Specifications Brand     Google Nest Features    Smart Features     Carbon Monoxide Detection Features      Heat Detection Power Source      Battery Power Source     Hardwired