The Hama WLAN heating control comes with two radiator thermostats and a central control unit. With the Smart Home heating control and automatic programmes, you can create your own personal heating scenarios and conveniently save on heating costs Simply swap your radiator thermostat for the Smart Home thermostat, Change the settings whenever you like: You can readjust the smart heating control from anywhere thanks to the Smart Home app, Smart and sleek, Set the perfect temperature for each room at all times with the Hama Smart Home app, Will fit all common radiator valves, e.g. Danfoss RA, RAV, Caleffi, Giacomini, thanks to the included adapters. Includes: 2 x Smart Home radiator thermostats 4 x AA Mignon batteries 1 x Central control unit 2 x adapter sets 1 x Power supply with micro USB cable 1 x User guide Please note: Requires Android 4.4 or iOS 8.0 operating system or later!