Unassuming and a breeze to install, Eve Door & Window fuses cutting-edge convenience with everyday peace of mind. Know the status of your door or window. Equip it to automatically control other Home Kit-enabled accessories throughout your home. And receive notifications while you\'re on the go, courtesy of your ever-present home hub. Eve Door & Window is powered by a long-lasting, replaceable battery, and boasts truly wireless, energy-efficient operation thanks to Bluetooth Low Energy technology.