Fangrui Product Details [programmable Schedule ]supports Manual Set Up 5+2,6+1 And 7 Days Weekly Schedule With 6 Periods For Option ,providing You With The Maximum Convenience For Different Situation And Setting Customized Schedule For Your House Temperature.holiday Mode,automatic Mode,boost Mode Available.choose Workday And Restday Mode To Meet Your Own Mind. [voice And Remote Control ]supports App Remote Control Via Your Smart Phone,together With The Hands-free Voice Control Via Alexa And Google Assistant After Successfully Connecting Your Valve To Tuya /smart Life App On The Basis Of One Tuya Zigbee Wireless Gateway. [open Window Detection]when Room Temperature Suddenly Drop Into Temp. Threshold,valve Will Close For 15 Minutes.after That,if The Room Temp. Is Still Lower Than Temp. Threshold,it Will Keep This Mode.besides,its Easy To Read Digital Display With Celsius Temperature. Parameter: Power Supply: 2*2 Aa* 1.5v Alkaline Batteries(without Battery) Maximum Current: 90ma Working Environment Temperature: -10~70c Display A