[ 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 ,google home ,a simply to voice control the TRV.[ Programmable Weekly Schedule&Time Period ] -7day programmable weekly schedule ,4 time period/day can be setting on app.[ Family Share Function ] -You can share the TRV to your family with the limited right,create a together with your family 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 .[ 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 special scene.SPECIFICATIONcolor: Whitematerial: plasticAPP:Smart Life/Tuya SmartVoice Control:,Google HomeFrequency:2.4GHzBattery:2 x AA Alkaline Battery (LR6)(without battery)Battery life:Half a YearTemeprature range:5-60Temperature Display:0-60Constant temperature tolerance:1Temperature Sensor:NTCWireless Protocol:Zigbee 3.0Connection:M30x1.5mmMAX travel:6mmWorking temperature:-10- 40Working environment:IndoorAnti-Froze:YesProgrammable:YesPackage Contents:1 x Thermostatic ValveOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.