The Kidde i9010 Smoke Alarm is a reliable home security device powered by a 10-year lithium battery. With a diameter of 5.5 inches and a sleek white design, this smoke alarm is designed to last. The manufacturer warranty guarantees 10 years of protection, making it a long-lasting investment for your home. Featuring an operating sound rating of 90 dB, this alarm will alert you with loud clarity in case of a fire. Trust the Kidde brand for quality and peace of mind in your home.