The First Alert SA520 Wi-Fi Smoke Detector Alarm is a smart home device that allows you to monitor your home's safety remotely through your mobile app. With a sleek white design and a weight of 0.75 kg, this smoke detector is powered by a battery included in the package, giving you peace of mind with a 2-year manufacturer warranty. The smart home compatibility and phone alerts feature make it a reliable choice for keeping your home safe and secure. This smoke detector is a convenient and essential addition to any modern household.