Wireless Interface: Bluetooth Suitable for: Door/Window Alkaline AA White Know the status of your door or window. Unassuming and a breeze to install with no tools required, Eve Door & Window fuses cutting-edge convenience with everyday peace of mind.Your home, ready for the future.You want your smart home to work across platforms, rely on a rock-solid infrastructure and honor your privacy. This is why Eve Door & Window features future-proof technology with Matter, cutting-edge Thread networking and no tracking whatsoever. So why settle for anything less? The future is now.Future-proof with Matter. Eve Door & Window supports Matter, making it easy to access your smart home devices securely from the platforms of your choice. Let your entire family monitor your home, no matter if they use an iPhone, Android device or call upon Alexa, Siri or Google Assistant.Privacy is paramount.Matter is designed to work entirely locally without a cloud, and so is Eve. All Eve devices protect your privac