Chamberlain® wireless intercoms take communication to a whole new level. They make communication easy – whether you're inside or outside your home – and are the first and only intercoms in the world designed to operate from batteries full-time. This means that they are always on and available, and conserve battery power when not in use, delivering years of uninterrupted service. They are also the only expandable wireless intercoms available to enhance your home's communication to multiple locations. And because all our intercoms are wireless, installation costs are minimal – no expensive wires, no excavation, and therefore simple to install.