1. APP remote control: With the for APP, you can remotely monitor the temperature of your home anytime and anywhere2. Voice control: Works with for Alexa and for Home to achieve voice control. With just one voice , the smart thermostat can run, freeing your hands3. Weekly programmable: Up to 48 schedules can be set in a day according to the needs and habits of users, and the room temperature can be adjusted regularly to provide a personalized experience4. Energy saving: Our heating energy saving concept is realized from various humanized . for App settings help you optimize energy use and choose the most suitable and economical heating mode5. Support 9 languages: The display panel of the Star Ring smart thermostat supports 9 languages, ensuring that users with different language backgrounds can easily browse and manage settingsVoltage/Frequency: 95-245VAC, 50/60HzCurrent Load: 5ACommunication Method: Wi-FiModule Model: ZT3LMaximum RF Power: +20dBmOperating Frequency: 2.405-2.480ghzZigbee Standard: IEEE 802.15.4Sensor: NTC3950 10kAccuracy: 1Set Temperature Range: 5-35Display Temperature Range: 5-99Storage Temperature: 0-45Energy Consumption: Less than 1.5wTiming Error: Less than 1%Protection Class: IP20The product appearance and printed words depending on the batch, but this does not affect useColour:WhiteMaterial:plasticPackage Contents:1 x Smart Knob ThermostatOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.