[APP Remote Control] - Download smart life/Tuya smart APP on your phone&Tablet to control the radiator thermostat valve anywhere/anytime. [Hand Free Voice Control] - Compatible with for , for 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 smart home 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 sure 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. APP:Smart Life/Tuya Smart Voice Control:for ,for Google Home Frequency:2.4GHz Battery:2xAA Alkaline Battery (LR6)(Battery not included) Battery life:Half a Year Temeprature range:5-60 Temperature Display:0-60 Constant temperature tolerance:1 Temperature Sensor:NTC Wireless Protocol:Zigbee 3.0 Connection:M30x1.5mm MAX travel:6mm Working temperature:-10- 40 Working environment:Indoor Anti-:Yes Programmable:Yes Colour:White Material:PC Size:94x55mm Package Contents: 1 * Thermostat 6 * valves Only 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.