Feature: 1. Widely used: It can be connected with other devices through wireless internet. Suitable for heating and central air conditioning temperature control in residential, shopping malls and hotels. 2. Powerful Functions: This valve comes with a compatible connector and is a smart living temperature control assistant. It has holiday mode and rest mode and supports individual temperature settings. 3. Mobile App Control: You can set the working time of this velve by yourself for Smart Life APP. The mini design is easy to operate, convenient to display and space saving 4. Weekly Programmable Schedule: Our thermostat valve supports 5 and 2 six period weekly programming, 6 and 1 six period weekly programming, seven days and six time period programming. 5. Voice Control: Our thermostat valve supports voice control function. Use simple voice commands to control the thermostat when your hands are not free. Specification: Item Type: Thermostat Valve Material: ABS Weight: Approx. 195g/6.88oz Size: 5.6x5.6x7.5cm/2.20x2.20x2.95in Operating Voltage: 2xAA batteries (not included) Control Accuracy: 0.5℃ Temperature Sensor: NTC (10k) 1% Operating Ambient Temperature: 0-50°C Default Setting Temperature range: 5-35°C Display Temperature range: 1-70°C Maximum Stroke: 4.5mm/0.18in Thread Specification: M30x1.5mm. Package List: 1 x Controller1 x Instruction Manual1 x RA Adapter1 x RAVL Adapter1 x RAV Adapter1 x Screw1 x Nut2 x Interface Valve Note: The product is only an automatic controller of the thermostatic radiator valve, which can only be used normally if it is controlled by APP and connected to other for Zigbee devices through a wireless gateway.