This product can be purchased as an add-on to our Smart Home Kit or as a stand-alone device. If it is purchased as an add-on, it will come pre-programmed to work with Alexa or Google Home for complete voice control and with the sequences available in our Smart Home Kits (Pin code management for guest arrival, automatically lock upon guest departure, etc). If you purchase it as a stand-alone item it does not include programming or setup and will not work without a hub.