APP Remote Control:Control the radiator thermostat valve anywhere/anytime via phone APP. Voice Control:A simple command to voice control the thermostat switch. Open window Function:Open the window detection function on the home page of the APP and the device will automatically detect. Long battery life, rest assured to use:Low power consumption,Battery standby for more than one year. Programmable Weekly Schedule&Time Period:7 days,supports different temperature setting accordingly with 6 time-modes daily. Protocol: Tuya Zigbee/zigbee3,0/Zwave/Matter Power:2xAA batteries (not included) Temperature range: 5-30℃, accurate to 0.5℃. Thread connection: M30x1.5 mm (adapters include Danfoss RA, RAV, RAVL, M28, Caleffi and Giacomini -6 adapters) Operating temperature: -10-50℃. Operating humidity: up to 90% Colour:White Material:ABS Package Contents: 2 x Smart Thermostatic Valve 2 x English instruction manual