Intelligent radiator thermostat: mini design and 2 * AA batteries (not included), with clear LED data display for easy reading; Use with radiators to control the closing and opening of the pipe for more convenient room temperature control. A Tuya ZigBee Wireless Gateway Hub is a must have for the ZigBee version: requires a ZigBee Wireless Gateway Hub (not included) to connect the valve to many other smart ZigBee products and realise the entire connection of your smart home devices. Simply add your gateway to the app, then add your radiator thermostat to your gateway in the Smart Life app. Smartphone APP Remote Control: Remote control the temperature of your home to achieve advanced convenience via the smartphone app (Tuya/Smart Life), and you can set the temperature anytime and anywhere, whether you are at home, in your office or on your way home. Flexible voice control: compatible with Google Home/Alexa. With this smart radiator thermostat, you can set the most comfortable temperature for your home via voice command, which is very helpful for busy hands. WEEKLY PROGRAMMABLE FOR MORE CONVENIENCE: Supports manual setup of 5+2, 7-day weekly schedules with 5 optional time periods that give you maximum comfort for different situations and set a custom schedule for your home temperature. Holiday mode, automatic mode and manual mode are available for added convenience.