According to current studies intuitive ways of controlling are for instance gestures, the use of voice-recognition or mobile phone applications. In this thesis the focus is set to the use of voice-recognition and the combination with existing controls. A possible way of integrating voice-recognition in the current system is using Apple’s HomeKit. This framework provides the possibility of using Siri, Apple’s voice assistance, to control accessories. Furthermore, users can exchange the application with any other HomeKit supporting application in the App store according to their personal preferences.