Help safeguard your home with the white Protect Battery-Powered Smoke and Carbon Monoxide Alarm from Nest. This alarm is powered by six included AA batteries and it wirelessly interacts with your Android and iOS smart devices using the free Nest app. Wireless communication is achieved thanks to its built-in Wi-Fi and Bluetooth connectivity. The Nest Protect is designed to detect fast-burning fires, smoldering fires, and carbon monoxide. It produces an audible alert when action is required, and it can be conveniently silenced from your smart devices.