Funcrions: [Stable signal] external dual-frequency antenna, reception enhancement, communication distance farther, more stable signal. [Accurate Temperature] Internal sensors accurately sense ambient and floor temperatures. Automatic acquisition of temperature, 0.5 accurate temperature control, small fluctuations, more suitable for the environment and set the temperature difference. [One Key ECO Energy Saving] one key set to 18 , energy saving mode operation can save energy 20%, plus RF433 low power consumption technology more energy saving(T7W Version Only) [APP Remote Control] Support Smart Life and Tuya Smart APP, device status, control room temperature, smart reminders, etc., all functions at your fingertips, It will let you enjoy the perfect temperature! [Voice Interaction Control] cooperation with Google Assistant, , Yandex 3 well-known voice system, sensitive response to voice commands, no need for a remote control, a word can control the temperature. [Humidity & Weather Display] connecting Wi-Fi will automatically synchronize the weather conditions and indoor humidity, helping the thermostat to achieve precise control, to maintain the right balance of indoor temperature and humidity [Weekly Programming Auto Mode] Use the Smart Schedule feature to set the perfect temperature for six of the 5+2/6+1/ . [Intelligent Power Failure Memory] Sudden power outage? Running out of battery? The thermostat automatically remembers the settings, no need to adjust the restart. [Shared Devices] create thermostat groups for centralized control and support device sharing. Specification:[Thermostat] power supply:3 x1.5 alkaline batteries(Not included)/USB power supply (Type-C interface) RF433 Thermostat can be controlled wirelessly and remotely across the wall, no need to pre-built wires, low-power chip allows you to heat without worrying about energy consumption, RF433 Receiver is wired directly to the wall hung boiler, more convenient to use. Once the thermostat is paired with the receiver, the receiver performs the heating, making it more flexible to use. Classic white color set, can be applied to all apartments and single-family houses Thermostat: can choose to use battery or Type C power supply, versatile and easy to use. (Both types of power supply support WiFi connection), support for wall mounting and desktop placement Receiver: the receiver is wired directly to the wall hung boiler, no complicated wiring problems, no need for , you can easily color: White material: plastic Temperature setting accuracy: 0.5 Detection accuracy: 0.1 Operating temperature range: -5-50 Temperature range: 5-95C mission distance: up to 200m in open position [Receiver] Power supply: AC100-240V; 50/60Hz Power consumption: 1W Max Package Contents: 1 x Smart RF433 Thermostat Kit(Without Battery)(T7W Set) Only 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.