Product function introduction: Voice ControlVoice assistants , Google, Xiaodu, Yandex. APP ControlSmart thermostat, which can be controlled by mobile phone before going home. Manual/Automatic ModeYou can freely choose manual or automatic mode. Accurate TemperatureAutomatically obtain the temperature with an accuracy of 0.5C. Weekly ProgrammableThe thermostat supports different temperature settings with 6 time modes per day. Children LockThe keypad lock function is designed to prevent misuse by children. ApplicationSuitable for gas boiler/hot water heating. Perfect for home, office, shopping mall, hotel etc. Specification: Type: WIFI Smart Thermostat Protection level/housing material: IP20/flame retardant PC Transmitter panel power supply method: two AA batteries (WIFI function cannot be used), USB (Type-c-6p DC5V) Receiving power: AC230V 50/60Hz Current load: 3A / 3A Temperature accuracy: 0.5C Temperature setting: 5-70C Button: touch button Product size: 135* 23.2 * 87.5mm Wireless transmission distance: open distance 100m Wireless frequency: 433MHZ (two-way FSK)