Nowadays security is the most common problem in door locking system. Anyone can break the door using hard objects and make a robbery of the home, offices and any other properties. This can lead to huge loss for the human economy. In this paper we are proposing a model, in which we used to lock and open the entryway utilizing the google help over the voice and stun IoT board and stun IoT application. The existing system rely on microcontroller, Global System for Mobile (GSM) , GPS(Global Positioning System), various sensors, programming like MATLAB, biometric face affirmation, Iris scanner, RFID(Radio frequency identification ) technology [6], smart card and mystery express etc. In a colossal fragment of frameworks, Short Message Service (SMS) approach is utilized for correspondence so the structure, it requires some test to pass on message.