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 ect. 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.