[Voice control] Compatible with Alexa, Amazon Echo, Google Home and Tmall Genie. [APP control] The smart thermostat can be controlled by mobile phone before going home. (APP: Tuya) [Manual/Automatic Mode] You can freely choose manual or automatic mode. [Accurate temperature] Obtain the temperature automatically, with an accuracy of 1C. [Weekly programmable] The thermostat supports different temperature settings in 6 time modes every day. [Child lock] The keyboard lock function is designed to prevent misuse by children. UseSuitable for gas boiler/hot water heating. Perfectly suitable for homes, offices, shopping malls, hotels, etc. Specifications: Type: WIFI smart thermostat Protection grade/shell material: IP20/flame retardant PC Power supply mode: two AAA batteries, USB (Type-c-6p DC5V) Current load: 3A / 3A Temperature accuracy: 1 Temperature setting: 5-90 Button: touch the button Product size: 135* 23.2 * 87.5mm Wireless transmission distance: 100-200m in open space Wireless frequency: 868MHZ/433MHZ (two-way FSK) WIFI communication protocol: Tuya protocol WIFI frequency: 2.4G Package Included: 1*temperature control regulator, 1*433 wireless panel, 1* manual, 1*installation screw pack