The smart thermostat provides uniform and comfortable temperature control in all rooms of your property. With technology, know-how and quality materials to offer you a safe and reliable thermostat combined with an elegant and contemporary design.Features: x Smart thermostat that can be controlled by your phone before you get home.x Wall or tabletop installation style meets your different needs.x Pairing of thermostat with the receiver, then the receiver can apply heating, more flexible to use.x2 power modes: 2xAAA batteries (NOT INCLUDED), DC 5V USB charging, AC230V wiring. x Create a group of thermostats for centralized control and support device sharing.Specifications:Material: PCColor whiteVoltage: 230 VCharging current: 3 ATemperature sensor : NTCTemperature accuracy: 1Temperature adjustment range: 5 - 90Protection level: IP20Wireless transmission distance: 100-200mWireless frequency: 868MHz/433MHz (two-way FSK)APP: TuyaPower supply: 2 AAA batteries (NOT INCLUDED), DC 5V USB charging, AC230V wiringItem size:Thermostat: 135 x 87.5 x 23.2 mm / 5.3 x 3.4 x 0.9 inchReceiver: 86 x 86 x 26 mm / 3.4 x 3.4 x 1.0 inchReceiver size package: 14.0 x 9.5 x 6.7cm / 5.5 x 3.7 x 2.6inPackage weight: 350g / 12.3oz Package list:1 x smart thermostat1 x Receiver1 x installation screw set1 x USB cable1 x manual Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.