Battery door missing!!! The Centralite 3400 Wireless Security Keypad is a white keypad designed for use with Xfinity Home Centra Lite systems. It is powered by batteries and features a ZigBee smart home protocol for connectivity. This indoor keypad, manufactured by Intertek/Centralite, includes a bracket for easy installation and does not come with a manufacturer warranty. With wireless connectivity and compatibility with Xfinity systems, the Centralite 3400 provides a convenient and secure option for home surveillance.