Build a network of protection to help protect your home and family from unexpected fires at all hours of the day and night with this pack of two interconnected smoke alarms that send immediate alerts to your smartphone whenever a fire is detected. Includes 4 smoke alarms for improved coverage and early detection Receive live alerts via the SmarterHome app for immediate action Compatible with Amazon Alexa and Google Assistant Capable of interconnecting with up to 20 compatible alarms 85-decibel alarm ensures even the soundest sleepers are alerted Large, accessible test/silent button for easy testing 10-year lithium battery ensures a lasting and reliable performance Ensure comprehensive home safety with four Kogan SmarterHome Interconnected Photoelectric Smoke Alarms. These alarms can interconnect with up to 20 compatible units, offering an extensive home alert network for heightened safety. SmarterHome integration These interconnected smoke alarms SmarterHome integration sends instant notifications of smoke detection to your smartphone, allows for live check-ins, and more so that you’re aware of fire threats whenever they occur. Comprehensive home safety With an 85-decibel alarm, large and accessible test/silent buttons, and ability to interconnect with up to 20 compatible alarms, including carbon monoxide alerts, water leak detectors, heat detectors, and more, these smart smoke alarms provides comprehensive safety for your home. A decade of protection Equipped with a battery that lasts up to an impressive 10 years, these smoke alarms ensure continuous, worry-free protection without the hassle of frequent battery changes. Fire-proof peace of mind These smoke alarms are crafted from fireproof ABS filament and subjected to rigorous testing according to UL94 and IEC 60695-11-10 standards, which translates into a reduced risk of the smoke alarm itself catching fire. Rest soundly knowing that you are safeguarded against the worst-case scenario of a fire emergency.