Remote control via Tellur Smart app   Voice control via Google Assistant and Amazon Alexa   Fully customizable, supports automation and smart scenarios   Child-lock, schedule, smart functions   Utilization  : Central Heating   Brand compatibility  : Universal   Receiver  : Wired, wall mounted   Receiver connectivity : Wired with boiler, 230VAC 50 / 60Hz Wireless 868MHz with central unit Wireless 2.4GHz with router   Receiver input load : Maximum 10A   Central unit  : Wireless, portable   Display  : 3.7"" illuminated   Display parameters :  Current temperature, set temperature, clock, current program   Open window detection : Yes, 2° C drop in 15 minutes   Frost protection  : Yes, 5° C default value   Child lock  : Yes   Wireless frequency : 2.4GHz   WiFi standard : IEEE 802.11b/g/n   Security : WPA-PSK/ WPA2-PSK /WPA/WPA2/WEP/WPS2/WAPI   Encryption type : WEP/TKIP/AES   Compatibility : Devices with Android 4.1 / iOS 8 or higher   Package includes : 1x Receiver 1x Central unit 1x Central unit stand and wall plate 2x screws   Product weight 280 g   Product dimensions  13,5 x 8,5 x 2,5 cm   Gross weight 370 g   Packaging dimensions 14 x 9 x 7 cm