[WiFi Smart TRV] ----Use your mobile phone to connect to 2.4G WiFi, and you can directly connect to the thermostat through the APP.[APP Remote Control] ----Download smart life /Tuya smart APP on your phone& to control the radiator thermostat valve anywhere/anytime.[Hand Free Voice Control] ---- Compatible with amazon ,google home ,a simply to voice control the light switch.[Programmable Weekly Schedule&Time Period] --- 7day programmable weekly schedule ,4 time period/day can be setting on app.[Open- function] -- When it is det-ected that there is cold wind, and the temperature by more than 1.5'C within 4.5 open- function will be activated. [Anti-scale] -- TRV executes routine decalcifcationevery Monday at 12:00 to the valve fromcalcifcation."CAL"will be displayed on the screen during decalcification[Easy to Install] -- Direct mount adapters, multiple valve adapter , to connect to piping.(Notice: please turn off electricity during installation).[Status Memory Function]---switch status when power off and can be set to on,off and keep the same as power off.[Child Lock Function]--- Child Lock Function avoid kid`s operation on it. Make your home in smart and safe status.[Group-Control Function] --- TRV can be set in group with valve in different room, realize group control function in scene.[ Share Function] ---You can share the TRV to your with the limited right,create a with your member.[Linkage Function] --It can linkage with other smart appliance in your home to create smart theme like leave home mode,back home mode,dinner mode,sleeping mode .Power Supply:3x 1.5 V alkaline AA batteries (not included)Standby Current:6 A MinProtection Degree:IP20 Temperature:0-50Surface Temperature:90 Max (at the radiator)Connection:M30 x 1.5mmLinear Travel:4.3 mmDimensions(W x H x D):58.4mm x 97mm x 58.4mmModel Number: TRV07-WiFi-LCDType: WiFi TRVAPP: Smart lifeVoice Control: ,Google homecolor:WhiteMaterial:ABSPackage Contents:1 x thermostatOnly the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.