Google recently announced that Google Assistant features are coming to its Nest Secure home security system. Giving consumers free features seems like a great idea, but Google forgot to list the microphone in the technical specifications for Nest Secure devices. Google says it was an "error" to not list the microphone in the tech specs. A Google spokesperson told Business Insider the microphone functionality was never enabled on the devices and was included to add additional features such as a glass breakage sensor at a later date. On Tuesday, a Google spokesperson told Business Insider the company had made an "error." "The on-device microphone was never intended to be a secret and should have been listed in the tech specs. That was an error on our part," the spokesperson said. Google says that "the microphone has never been on and is only activated when users specifically enable the option."