10-Year Product Life: A long-lasting design ensures up to 10 years of stable, reliable performance, protecting your home and family from potential hazards in your home Wireless Interconnection: These wireless alarms interconnect via radio frequency so that when one alarm is triggered, all alarms will sound, allowing you and your family to hear the alarm from anywhere in your home Full Home Coverage: Connects up to wireless alarms to detect potential danger anywhere in your home and increase your total home protection Fire-Retardant ABS Material: Made with a fire-retardant rated material, this detector is flame-retardant, has good impact resistance, and offers high durability over time, making it an effective and long-lasting part of your home safety